$BLBD
Blue Bird Corp Stock $blbd

$blbd Overview Financials Valuation SEC Filings Company Website

2024 Q4 Form 10-K Financial Statement

#000158952624000119 Filed on November 25, 2024

Income Statement

Concept	2024 Q4	2024 Q3	2024
Revenue			$1.347B
YoY Change			18.92%
Cost Of Revenue			$1.091B
YoY Change			9.76%
Gross Profit			$256.2M
YoY Change			84.48%
Gross Profit Margin			19.01%
Selling, General & Admin			$116.8M
YoY Change			33.98%
% of Gross Profit			45.61%
Research & Development			$9.400M
YoY Change			42.42%
% of Gross Profit			3.67%
Depreciation & Amortization			$14.82M
YoY Change			-7.25%
% of Gross Profit			5.79%
Operating Expenses			$126.2M
YoY Change			34.58%
Operating Profit			$139.3M
YoY Change			169.72%
Interest Expense			$10.58M
YoY Change			-41.27%
% of Operating Profit			7.59%
Other Income/Expense, Net			-$4.394M
YoY Change			-47.1%
Pretax Income			$126.9M
YoY Change			391.9%
Income Tax			$33.23M
% Of Pretax Income			26.18%
Net Earnings			$105.5M
YoY Change			343.25%
Net Earnings / Revenue			7.83%
Basic Earnings Per Share			$3.27
Diluted Earnings Per Share			$3.16
COMMON SHARES
Basic Shares Outstanding	32.27M shares	32.36M shares	32.27M shares
Diluted Shares Outstanding			33.35M shares

Balance Sheet

Concept	2024 Q4	2024 Q3	2024
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents		$127.7M
Short-Term Investments
Other Short-Term Assets		$8.795M
YoY Change		-8.52%
Inventory		$127.8M
Prepaid Expenses
Receivables		$59.10M
Other Receivables
Total Short-Term Assets		$323.4M
YoY Change		61.12%
LONG-TERM ASSETS
Property, Plant & Equipment		$97.32M
YoY Change		1.28%
Goodwill		$18.83M
YoY Change		0.0%
Intangibles		$43.55M
YoY Change		-5.16%
Long-Term Investments		$32.09M
YoY Change		116.44%
Other Assets		$2.345M
YoY Change		30.13%
Total Long-Term Assets		$201.5M
YoY Change		6.45%
TOTAL ASSETS
Total Short-Term Assets		$323.4M
Total Long-Term Assets		$201.5M
Total Assets		$524.9M
YoY Change		34.58%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable		$143.2M
YoY Change		5.12%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due		$5.000M
YoY Change		-74.75%
Total Short-Term Liabilities		$236.0M
YoY Change		8.4%
LONG-TERM LIABILITIES
Long-Term Debt		$89.99M
YoY Change		-21.85%
Other Long-Term Liabilities		$9.020M
YoY Change		10.26%
Total Long-Term Liabilities		$129.4M
YoY Change		-20.09%
TOTAL LIABILITIES
Total Short-Term Liabilities		$236.0M
Total Long-Term Liabilities		$129.4M
Total Liabilities		$365.3M
YoY Change		-3.75%
SHAREHOLDERS EQUITY
Retained Earnings		$0.00
YoY Change		-100.0%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)		$0.00
YoY Change		-100.0%
Treasury Stock Shares
Shareholders Equity		$159.6M
YoY Change
Total Liabilities & Shareholders Equity		$524.9M
YoY Change		34.58%

Cashflow Statement

Concept	2024 Q4	2024 Q3	2024
OPERATING ACTIVITIES
Net Income			$105.5M
YoY Change			343.25%
Depreciation, Depletion And Amortization			$14.82M
YoY Change			-7.25%
Cash From Operating Activities			$111.1M
YoY Change			-7.35%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities
YoY Change
Cash From Investing Activities			-$15.82M
YoY Change			85.62%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$1.178M
YoY Change			213.3%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities			-$46.60M
YoY Change			8.62%
NET CHANGE
Cash From Operating Activities			$111.1M
Cash From Investing Activities			-$15.82M
Cash From Financing Activities			-$46.60M
Net Change In Cash			$48.70M
YoY Change			-28.92%
FREE CASH FLOW
Cash From Operating Activities			$111.1M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33228000	usd
CY2024	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11839000	usd
CY2023	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	6960000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	105547000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45759000	usd
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32270711	shares
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32071940	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31020399	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32258652	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31020399	shares
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.48
CY2024	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-200000	usd
CY2023	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-64000	usd
CY2024	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2024	dei	Document Annual Report DocumentAnnualReport	true
CY2024	dei	Document Transition Report DocumentTransitionReport	false
CY2024	dei	Entity Address State Or Province EntityAddressStateOrProvince	GA
CY2024	dei	Security12b Title Security12bTitle	Common stock, $0.0001 par value
CY2024	dei	Trading Symbol TradingSymbol	BLBD
CY2024	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2024	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2024	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2024	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2024	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2024	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2024	dei	Entity Small Business EntitySmallBusiness	false
CY2024	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2024	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2024	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2024	dei	Entity Shell Company EntityShellCompany	false
CY2024Q3	dei	Entity Public Float EntityPublicFloat	1232400000	usd
CY2024Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	32268022	shares
CY2024	dei	Auditor Firm AuditorFirmId	243
CY2024	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	33349221	shares
CY2024	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.27
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.48
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45759000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-4159000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4015000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	23812000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	10046000	usd
CY2024	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
CY2024	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2024	dei	Amendment Flag AmendmentFlag	false
CY2024	dei	Entity Central Index Key EntityCentralIndexKey	0001589526
CY2024Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	5000000.0	usd
CY2024Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	5000000.0	usd
CY2018Q4	blbd	Derivative Cap Interest Rate Term DerivativeCapInterestRateTerm	P4Y
CY2024Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2024	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	1200000	usd
CY2023Q3	us-gaap	Environmental Loss Contingency Statement Of Financial Position Extensible Enumeration EnvironmentalLossContingencyStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent http://www.blue-bird.com/20240928#AccruedLiabilitiesExcludingProductWarrantyAccrualCurrent
CY2024Q3	us-gaap	Environmental Loss Contingency Statement Of Financial Position Extensible Enumeration EnvironmentalLossContingencyStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent http://www.blue-bird.com/20240928#AccruedLiabilitiesExcludingProductWarrantyAccrualCurrent
CY2024Q3	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentNet
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentNet
CY2024Q3	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesCurrent
CY2023Q3	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesCurrent
CY2023Q3	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2024Q3	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2024	dei	Document Period End Date DocumentPeriodEndDate	2024-09-28
CY2024	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-28
CY2024	dei	Entity File Number EntityFileNumber	001-36267
CY2024	dei	Entity Registrant Name EntityRegistrantName	BLUE BIRD CORPORATION
CY2024	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2024	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	46-3891989
CY2024	dei	Entity Address Address Line1 EntityAddressAddressLine1	3920 Arkwright Road
CY2024	dei	Entity Address Address Line2 EntityAddressAddressLine2	2nd Floor
CY2024	dei	Entity Address City Or Town EntityAddressCityOrTown	Macon
CY2024	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	31210
CY2024	dei	City Area Code CityAreaCode	478
CY2024	dei	Local Phone Number LocalPhoneNumber	822-2801
CY2024	dei	Auditor Name AuditorName	BDO USA, P.C.
CY2024	dei	Auditor Location AuditorLocation	Atlanta, Georgia
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	127687000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	78988000	usd
CY2024Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	59099000	usd
CY2023Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	12574000	usd
CY2024Q3	us-gaap	Inventory Net InventoryNet	127798000	usd
CY2023Q3	us-gaap	Inventory Net InventoryNet	135286000	usd
CY2024Q3	us-gaap	Other Assets Current OtherAssetsCurrent	8795000	usd
CY2023Q3	us-gaap	Other Assets Current OtherAssetsCurrent	9215000	usd
CY2024Q3	us-gaap	Assets Current AssetsCurrent	323379000	usd
CY2023Q3	us-gaap	Assets Current AssetsCurrent	236063000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	97322000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	95101000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2864000	usd
CY2024	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	111015000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	33858000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-42895000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	105547000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	23812000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45759000	usd
CY2024	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	14820000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	15978000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	14050000	usd
CY2024	us-gaap	Paid In Kind Interest PaidInKindInterest	390000	usd
CY2023	us-gaap	Paid In Kind Interest PaidInKindInterest	1470000	usd
CY2022	us-gaap	Paid In Kind Interest PaidInKindInterest	3400000	usd
CY2024	us-gaap	Share Based Compensation ShareBasedCompensation	8609000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	4173000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	3690000	usd
CY2024	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11839000	usd
CY2023	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	6960000	usd
CY2024	blbd	Dividend From Equity Investment In Affiliates DividendFromEquityInvestmentInAffiliates	5338000	usd
CY2022	blbd	Dividend From Equity Investment In Affiliates DividendFromEquityInvestmentInAffiliates	0	usd
CY2022	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-15000	usd
CY2023	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1354000	usd
CY2023	us-gaap	Inventory Write Down InventoryWriteDown	0	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	8752000	usd
CY2024	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1674000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	8065000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-11071000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	18825000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	18825000	usd
CY2024Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	43554000	usd
CY2023Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	45424000	usd
CY2024Q3	us-gaap	Equity Method Investments EquityMethodInvestments	32089000	usd
CY2023Q3	us-gaap	Equity Method Investments EquityMethodInvestments	17619000	usd
CY2024Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	2399000	usd
CY2023Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	2182000	usd
CY2024Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	332000	usd
CY2023Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1034000	usd
CY2024Q3	blbd	Pension Pension	4649000	usd
CY2023Q3	blbd	Pension Pension	0	usd
CY2024Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2345000	usd
CY2023Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1518000	usd
CY2024Q3	us-gaap	Assets Assets	524894000	usd
CY2023Q3	us-gaap	Assets Assets	417766000	usd
CY2024Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	143156000	usd
CY2023Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	137140000	usd
CY2024Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	7166000	usd
CY2023Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	6711000	usd
CY2024Q3	blbd	Accrued Liabilities Excluding Product Warranty Accrual Current AccruedLiabilitiesExcludingProductWarrantyAccrualCurrent	55775000	usd
CY2023Q3	blbd	Accrued Liabilities Excluding Product Warranty Accrual Current AccruedLiabilitiesExcludingProductWarrantyAccrualCurrent	32894000	usd
CY2024Q3	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	9421000	usd
CY2023Q3	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	8101000	usd
CY2024Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	975000	usd
CY2023Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	583000	usd
CY2024Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	14480000	usd
CY2023Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	24391000	usd
CY2024Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	5000000	usd
CY2023Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	19800000	usd
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CY2023Q3	us-gaap	Liabilities Current LiabilitiesCurrent	229620000	usd
CY2024Q3	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	0	usd
CY2023Q3	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	0	usd
CY2024Q3	us-gaap	Mediumterm Notes Noncurrent MediumtermNotesNoncurrent	89994000	usd
CY2023Q3	us-gaap	Mediumterm Notes Noncurrent MediumtermNotesNoncurrent	110544000	usd
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CY2023Q3	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	8723000	usd
CY2024Q3	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	18541000	usd
CY2023Q3	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	15022000	usd
CY2024Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	2783000	usd
CY2023Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	2513000	usd
CY2024Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	6000	usd
CY2023Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	987000	usd
CY2024Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	9020000	usd
CY2023Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	7955000	usd
CY2024Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	0	usd
CY2023Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	2404000	usd
CY2024Q3	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	129357000	usd
CY2023Q3	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	148148000	usd
CY2024Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2024Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2023Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2024Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2023Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2024Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2024Q3	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	0	usd
CY2023Q3	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	0	usd
CY2024Q3	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0	usd
CY2023Q3	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0	usd
CY2023Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2024Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2023Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2024Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2024Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	32268022	shares
CY2023Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	32165225	shares
CY2024Q3	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	3000	usd
CY2023Q3	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	3000	usd
CY2024Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	185977000	usd
CY2023Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	177861000	usd
CY2024Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	0	usd
CY2023Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-55700000	usd
CY2024Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-26416000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-31884000	usd
CY2024Q3	us-gaap	Treasury Stock Value TreasuryStockValue	0	usd
CY2023Q3	us-gaap	Treasury Stock Value TreasuryStockValue	50282000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	159564000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	39998000	usd
CY2024Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	524894000	usd
CY2023Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	417766000	usd
CY2024	us-gaap	Revenues Revenues	1347154000	usd
CY2023	us-gaap	Revenues Revenues	1132793000	usd
CY2022	us-gaap	Revenues Revenues	800637000	usd
CY2024	us-gaap	Cost Of Revenue CostOfRevenue	1090998000	usd
CY2023	us-gaap	Cost Of Revenue CostOfRevenue	993943000	usd
CY2022	us-gaap	Cost Of Revenue CostOfRevenue	764091000	usd
CY2024	us-gaap	Gross Profit GrossProfit	256156000	usd
CY2023	us-gaap	Gross Profit GrossProfit	138850000	usd
CY2022	us-gaap	Gross Profit GrossProfit	36546000	usd
CY2024	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	116825000	usd
CY2023	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	87193000	usd
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	77246000	usd
CY2024	us-gaap	Operating Income Loss OperatingIncomeLoss	139331000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	51657000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	-40700000	usd
CY2024	us-gaap	Interest Expense InterestExpense	10579000	usd
CY2023	us-gaap	Interest Expense InterestExpense	18012000	usd
CY2022	us-gaap	Interest Expense InterestExpense	14675000	usd
CY2024	us-gaap	Investment Income Interest InvestmentIncomeInterest	4136000	usd
CY2023	us-gaap	Investment Income Interest InvestmentIncomeInterest	1004000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	9000	usd
CY2024	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-4394000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-8307000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2947000	usd
CY2024	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1558000	usd
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-537000	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-632000	usd
CY2024	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	126936000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	25805000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-53051000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8953000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-11451000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-4159000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	23812000	usd
CY2024	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.16
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2024	us-gaap	Net Income Loss NetIncomeLoss	105547000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	23812000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-5468000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-10046000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-2864000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	5468000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	10046000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2864000	usd
CY2024	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	111015000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	33858000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-42895000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	105547000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	23812000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45759000	usd
CY2024	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	14820000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	15978000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	14050000	usd
CY2024	us-gaap	Paid In Kind Interest PaidInKindInterest	390000	usd
CY2022	us-gaap	Paid In Kind Interest PaidInKindInterest	3400000	usd
CY2024	us-gaap	Share Based Compensation ShareBasedCompensation	8609000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	4173000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	3690000	usd
CY2024	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11839000	usd
CY2023	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	6960000	usd
CY2024	blbd	Dividend From Equity Investment In Affiliates DividendFromEquityInvestmentInAffiliates	5338000	usd
CY2023	blbd	Dividend From Equity Investment In Affiliates DividendFromEquityInvestmentInAffiliates	0	usd
CY2022	blbd	Dividend From Equity Investment In Affiliates DividendFromEquityInvestmentInAffiliates	0	usd
CY2022	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-15000	usd
CY2023	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1354000	usd
CY2024	us-gaap	Inventory Write Down InventoryWriteDown	0	usd
CY2023	us-gaap	Inventory Write Down InventoryWriteDown	0	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	8752000	usd
CY2024	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1674000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	8065000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-11071000	usd
CY2024	blbd	Defined Benefit Plan Amortizationof Deferred Gains Losses DefinedBenefitPlanAmortizationofDeferredGainsLosses	-687000	usd
CY2023	blbd	Defined Benefit Plan Amortizationof Deferred Gains Losses DefinedBenefitPlanAmortizationofDeferredGainsLosses	-1195000	usd
CY2022	blbd	Defined Benefit Plan Amortizationof Deferred Gains Losses DefinedBenefitPlanAmortizationofDeferredGainsLosses	-3768000	usd
CY2024	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1558000	usd
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-537000	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-632000	usd
CY2024	blbd	Defined Benefit Plan Amortizationof Deferred Gains Losses DefinedBenefitPlanAmortizationofDeferredGainsLosses	-687000	usd
CY2023	blbd	Defined Benefit Plan Amortizationof Deferred Gains Losses DefinedBenefitPlanAmortizationofDeferredGainsLosses	-1195000	usd
CY2022	blbd	Defined Benefit Plan Amortizationof Deferred Gains Losses DefinedBenefitPlanAmortizationofDeferredGainsLosses	-3768000	usd
CY2024	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1558000	usd
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-537000	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-632000	usd
CY2024	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	46525000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	40000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2567000	usd
CY2024	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-7488000	usd
CY2024	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-971000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-453000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1913000	usd
CY2024	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	6665000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	28712000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	35075000	usd
CY2024	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	18877000	usd
CY2023	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	34778000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-15325000	usd
CY2024	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	5565000	usd
CY2023	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	96116000	usd
CY2022	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	21322000	usd
CY2024	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	111112000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	119928000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-24437000	usd
CY2024	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	15263000	usd
CY2023	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	8520000	usd
CY2022	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	6453000	usd
CY2024	blbd	Equity Investment In Affiliates EquityInvestmentInAffiliates	-552000	usd
CY2023	blbd	Equity Investment In Affiliates EquityInvestmentInAffiliates	0	usd
CY2022	blbd	Equity Investment In Affiliates EquityInvestmentInAffiliates	0	usd
CY2024	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-15815000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-6453000	usd
CY2023	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	45000000	usd
CY2022	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	135000000	usd
CY2024	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	36220000	usd
CY2023	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	65000000	usd
CY2022	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	160000000	usd
CY2024	blbd	Proceeds From Term Loan Borrowings ProceedsFromTermLoanBorrowings	100000000	usd
CY2023	blbd	Proceeds From Term Loan Borrowings ProceedsFromTermLoanBorrowings	0	usd
CY2022	blbd	Proceeds From Term Loan Borrowings ProceedsFromTermLoanBorrowings	0	usd
CY2024	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	135550000	usd
CY2023	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	19800000	usd
CY2022	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	14850000	usd
CY2024	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	589000	usd
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	570000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1132000	usd
CY2024	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	3128000	usd
CY2023	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	3272000	usd
CY2024	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	75000000	usd
CY2024	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	usd
CY2024	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	46525000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	40000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2567000	usd
CY2024	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-7488000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-7691000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	26523000	usd
CY2024	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-971000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-453000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1913000	usd
CY2024	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	6665000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	28712000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	35075000	usd
CY2024	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	18877000	usd
CY2023	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	34778000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-15325000	usd
CY2024	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	5565000	usd
CY2023	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	96116000	usd
CY2022	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	21322000	usd
CY2024	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	111112000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	119928000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-24437000	usd
CY2024	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	15263000	usd
CY2023	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	8520000	usd
CY2022	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	6453000	usd
CY2024	blbd	Equity Investment In Affiliates EquityInvestmentInAffiliates	-552000	usd
CY2023	blbd	Equity Investment In Affiliates EquityInvestmentInAffiliates	0	usd
CY2022	blbd	Equity Investment In Affiliates EquityInvestmentInAffiliates	0	usd
CY2024	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-15815000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-8520000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-6453000	usd
CY2024	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	36220000	usd
CY2023	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	45000000	usd
CY2022	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	135000000	usd
CY2024	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	36220000	usd
CY2023	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	65000000	usd
CY2022	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	160000000	usd
CY2024	blbd	Proceeds From Term Loan Borrowings ProceedsFromTermLoanBorrowings	100000000	usd
CY2023	blbd	Proceeds From Term Loan Borrowings ProceedsFromTermLoanBorrowings	0	usd
CY2022	blbd	Proceeds From Term Loan Borrowings ProceedsFromTermLoanBorrowings	0	usd
CY2024	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	135550000	usd
CY2023	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	19800000	usd
CY2022	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	14850000	usd
CY2024	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	589000	usd
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	570000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1132000	usd
CY2024	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	3128000	usd
CY2023	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	3272000	usd
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2751000	usd
CY2024	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	75000000	usd
CY2024	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	usd
CY2023	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	usd
CY2023	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	usd
CY2022	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	202000	usd
CY2024	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	9938000	usd
CY2023	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	usd
CY2022	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	376000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1708000	usd
CY2024	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	3785000	usd
CY2023	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1119000	usd
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	303000	usd
CY2024	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-46598000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-42899000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	29660000	usd
CY2024	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	48699000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	68509000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1230000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	78988000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	10479000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	11709000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	127687000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	78988000	usd
CY2024	us-gaap	Interest Paid Net InterestPaidNet	9932000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	16053000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	15180000	usd
CY2024	blbd	Interest Received Excluding Capitalized Interest Operating Activities InterestReceivedExcludingCapitalizedInterestOperatingActivities	-3783000	usd
CY2023	blbd	Interest Received Excluding Capitalized Interest Operating Activities InterestReceivedExcludingCapitalizedInterestOperatingActivities	-1004000	usd
CY2024	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	29401000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-29000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-79000	usd
CY2024	blbd	Increase Decrease Capital Expenditures Incurredbut Not Yet Paid IncreaseDecreaseCapitalExpendituresIncurredbutNotYetPaid	721000	usd
CY2023	blbd	Increase Decrease Capital Expenditures Incurredbut Not Yet Paid IncreaseDecreaseCapitalExpendituresIncurredbutNotYetPaid	941000	usd
CY2022	blbd	Increase Decrease Capital Expenditures Incurredbut Not Yet Paid IncreaseDecreaseCapitalExpendituresIncurredbutNotYetPaid	948000	usd
CY2024	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1682000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	626000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1424000	usd
CY2024	blbd	Right Of Use Assets Removed Due To Non Renewal Of Finance Lease RightOfUseAssetsRemovedDueToNonRenewalOfFinanceLease	0	usd
CY2023	blbd	Right Of Use Assets Removed Due To Non Renewal Of Finance Lease RightOfUseAssetsRemovedDueToNonRenewalOfFinanceLease	0	usd
CY2022	blbd	Right Of Use Assets Removed Due To Non Renewal Of Finance Lease RightOfUseAssetsRemovedDueToNonRenewalOfFinanceLease	-2451000	usd
CY2024	blbd	Right Of Use Liabilities Removed Due To Non Renewal Of Finance Lease RightOfUseLiabilitiesRemovedDueToNonRenewalOfFinanceLease	0	usd
CY2023	blbd	Right Of Use Liabilities Removed Due To Non Renewal Of Finance Lease RightOfUseLiabilitiesRemovedDueToNonRenewalOfFinanceLease	0	usd
CY2022	blbd	Right Of Use Liabilities Removed Due To Non Renewal Of Finance Lease RightOfUseLiabilitiesRemovedDueToNonRenewalOfFinanceLease	2593000	usd
CY2024	us-gaap	Stock And Warrants Issued During Period Value Preferred Stock And Warrants StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants	7416000	usd
CY2023	us-gaap	Stock And Warrants Issued During Period Value Preferred Stock And Warrants StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants	0	usd
CY2022	us-gaap	Stock And Warrants Issued During Period Value Preferred Stock And Warrants StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants	0	usd
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-32656000	usd
CY2022	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-1688000	usd
CY2022	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	284000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3539000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45759000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2864000	usd
CY2022Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1382000	usd
CY2023	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1119000	usd
CY2023Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	39998000	usd
CY2022	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	202000	usd
CY2024	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	9938000	usd
CY2023	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	usd
CY2022	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	usd
CY2024	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1178000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	376000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1708000	usd
CY2024	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	3785000	usd
CY2023	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1119000	usd
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	303000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-42899000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	29660000	usd
CY2024	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	48699000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	68509000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1230000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	78988000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	10479000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	11709000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	127687000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	78988000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	10479000	usd
CY2024	us-gaap	Interest Paid Net InterestPaidNet	9932000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	16053000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	15180000	usd
CY2024	blbd	Interest Received Excluding Capitalized Interest Operating Activities InterestReceivedExcludingCapitalizedInterestOperatingActivities	-3783000	usd
CY2023	blbd	Interest Received Excluding Capitalized Interest Operating Activities InterestReceivedExcludingCapitalizedInterestOperatingActivities	-1004000	usd
CY2022	blbd	Interest Received Excluding Capitalized Interest Operating Activities InterestReceivedExcludingCapitalizedInterestOperatingActivities	-9000	usd
CY2024	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	29401000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-29000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-79000	usd
CY2024	blbd	Increase Decrease Capital Expenditures Incurredbut Not Yet Paid IncreaseDecreaseCapitalExpendituresIncurredbutNotYetPaid	721000	usd
CY2023	blbd	Increase Decrease Capital Expenditures Incurredbut Not Yet Paid IncreaseDecreaseCapitalExpendituresIncurredbutNotYetPaid	941000	usd
CY2022	blbd	Increase Decrease Capital Expenditures Incurredbut Not Yet Paid IncreaseDecreaseCapitalExpendituresIncurredbutNotYetPaid	948000	usd
CY2024	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1682000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	626000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1424000	usd
CY2024	blbd	Right Of Use Assets Removed Due To Non Renewal Of Finance Lease RightOfUseAssetsRemovedDueToNonRenewalOfFinanceLease	0	usd
CY2023	blbd	Right Of Use Assets Removed Due To Non Renewal Of Finance Lease RightOfUseAssetsRemovedDueToNonRenewalOfFinanceLease	0	usd
CY2022	blbd	Right Of Use Assets Removed Due To Non Renewal Of Finance Lease RightOfUseAssetsRemovedDueToNonRenewalOfFinanceLease	-2451000	usd
CY2024	blbd	Right Of Use Liabilities Removed Due To Non Renewal Of Finance Lease RightOfUseLiabilitiesRemovedDueToNonRenewalOfFinanceLease	0	usd
CY2023	blbd	Right Of Use Liabilities Removed Due To Non Renewal Of Finance Lease RightOfUseLiabilitiesRemovedDueToNonRenewalOfFinanceLease	0	usd
CY2024	us-gaap	Stock And Warrants Issued During Period Value Preferred Stock And Warrants StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants	7416000	usd
CY2023	us-gaap	Stock And Warrants Issued During Period Value Preferred Stock And Warrants StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants	0	usd
CY2022	us-gaap	Stock And Warrants Issued During Period Value Preferred Stock And Warrants StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants	0	usd
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-32656000	usd
CY2022	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-1688000	usd
CY2022	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	284000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3539000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45759000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2864000	usd
CY2023	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-376000	usd
CY2023	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1119000	usd
CY2023Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	39998000	usd
CY2024	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	7416000	usd
CY2024	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	7416000	usd
CY2024	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-1178000	usd
CY2024	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	3785000	usd
CY2024	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8466000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	105547000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	5468000	usd
CY2024Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	159564000	usd
CY2024	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Use of Estimates and Assumptions </span></div>The preparation of financial statements in accordance with accounting principles generally accepted in the U.S. (“U.S. GAAP”) requires management to make estimates and assumptions. At the date of the financial statements, these estimates and assumptions affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities, and during the reporting period, these estimates and assumptions affect the reported amounts of revenues and expenses. For example, significant management judgments are required in determining excess, obsolete, or unsalable inventory, allowance for doubtful accounts, potential impairment of long-lived assets, goodwill and intangible assets, the accounting for self-insurance reserves, warranty reserves, pension obligations, income taxes, environmental liabilities and contingencies. Future events, including continued supply chain constraints and their related economic impacts, and their effects cannot be predicted with certainty, and, accordingly, the Company’s accounting estimates require the exercise of judgment. The accounting estimates used in the preparation of the Company’s consolidated financial statements may change as new events occur, as more experience is acquired, as additional information is obtained and as the Company’s operating environment changes. The Company evaluates and updates its assumptions and estimates on an ongoing basis and may employ outside experts to assist in the Company’s evaluations. Actual results could differ from the estimates that the Company has used.
CY2024	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-1178000	usd
CY2024	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	3785000	usd
CY2024	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8466000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	105547000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	5468000	usd
CY2024Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	159564000	usd
CY2024	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Use of Estimates and Assumptions </span></div>The preparation of financial statements in accordance with accounting principles generally accepted in the U.S. (“U.S. GAAP”) requires management to make estimates and assumptions. At the date of the financial statements, these estimates and assumptions affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities, and during the reporting period, these estimates and assumptions affect the reported amounts of revenues and expenses. For example, significant management judgments are required in determining excess, obsolete, or unsalable inventory, allowance for doubtful accounts, potential impairment of long-lived assets, goodwill and intangible assets, the accounting for self-insurance reserves, warranty reserves, pension obligations, income taxes, environmental liabilities and contingencies. Future events, including continued supply chain constraints and their related economic impacts, and their effects cannot be predicted with certainty, and, accordingly, the Company’s accounting estimates require the exercise of judgment. The accounting estimates used in the preparation of the Company’s consolidated financial statements may change as new events occur, as more experience is acquired, as additional information is obtained and as the Company’s operating environment changes. The Company evaluates and updates its assumptions and estimates on an ongoing basis and may employ outside experts to assist in the Company’s evaluations. Actual results could differ from the estimates that the Company has used.
CY2024	us-gaap	Derivatives Methods Of Accounting Hedge Documentation DerivativesMethodsOfAccountingHedgeDocumentation	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Derivative Instruments</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In limited circumstances, we may utilize derivative instruments to manage certain exposures to changes in foreign currency exchange rates or interest rates relating to variable rate debt. The fair values of all derivative instruments are recognized as assets or liabilities at the balance sheet date. Changes in the fair value of these derivative instruments are recognized in our operating results or included in other comprehensive income, depending on whether the derivative instrument qualifies, and is appropriately designated, for hedge accounting treatment and if so, whether it represents a fair value or cash flow hedge. Gains and losses on derivative instruments are recognized in the operating results line item that reflects the underlying exposure that was mitigated either via a formal hedge accounting relationship or economically.</span></div>
CY2024	us-gaap	Derivatives Methods Of Accounting Hedge Documentation DerivativesMethodsOfAccountingHedgeDocumentation	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Derivative Instruments</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In limited circumstances, we may utilize derivative instruments to manage certain exposures to changes in foreign currency exchange rates or interest rates relating to variable rate debt. The fair values of all derivative instruments are recognized as assets or liabilities at the balance sheet date. Changes in the fair value of these derivative instruments are recognized in our operating results or included in other comprehensive income, depending on whether the derivative instrument qualifies, and is appropriately designated, for hedge accounting treatment and if so, whether it represents a fair value or cash flow hedge. Gains and losses on derivative instruments are recognized in the operating results line item that reflects the underlying exposure that was mitigated either via a formal hedge accounting relationship or economically.</span></div>
CY2024	us-gaap	Property Plant And Equipment Impairment PropertyPlantAndEquipmentImpairment	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Impairment of Long-Lived Assets</span></div>The Company reviews its long-lived assets, including property, plant and equipment, for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. If we are required to analyze recoverability based on a triggering event, undiscounted future cash flows over the estimated remaining life of the asset, or asset group, are projected. If these projected cash flows are less than the carrying amount, an impairment loss is recognized to the extent the fair value of the asset less any costs of disposition is less than the carrying amount of the asset. Judgments regarding the existence of impairment indicators are based on market and operational performance. Evaluating potential impairment also requires estimates of future operating results and cash flows.
CY2024Q3	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	1300000	usd
CY2023Q3	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	1500000	usd
CY2024	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	400000	usd
CY2023	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1500000	usd
CY2022	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1500000	usd
CY2024	us-gaap	Property Plant And Equipment Impairment PropertyPlantAndEquipmentImpairment	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Impairment of Long-Lived Assets</span></div>The Company reviews its long-lived assets, including property, plant and equipment, for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. If we are required to analyze recoverability based on a triggering event, undiscounted future cash flows over the estimated remaining life of the asset, or asset group, are projected. If these projected cash flows are less than the carrying amount, an impairment loss is recognized to the extent the fair value of the asset less any costs of disposition is less than the carrying amount of the asset. Judgments regarding the existence of impairment indicators are based on market and operational performance. Evaluating potential impairment also requires estimates of future operating results and cash flows.
CY2024Q3	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	1300000	usd
CY2023Q3	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	1500000	usd
CY2024	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	400000	usd
CY2023	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1500000	usd
CY2022	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1500000	usd
CY2024	blbd	Extended Product Warranty Period ExtendedProductWarrantyPeriod	P12M
CY2024	blbd	Extended Product Warranty Period ExtendedProductWarrantyPeriod	P12M
CY2024	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	9400000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6600000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6100000	usd
CY2024	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	9400000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6600000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6100000	usd
CY2024Q3	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	59199000	usd
CY2023Q3	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	12674000	usd
CY2024Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	100000	usd
CY2023Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	100000	usd
CY2024Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	59099000	usd
CY2023Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	12574000	usd
CY2023Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15434000	usd
CY2022Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15970000	usd
CY2021Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	18550000	usd
CY2024	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	9985000	usd
CY2023	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	9084000	usd
CY2022	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	7348000	usd
CY2024	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	-9240000	usd
CY2023	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	-9620000	usd
CY2022	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	-9928000	usd
CY2024Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	16179000	usd
CY2023Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15434000	usd
CY2022Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15970000	usd
CY2023Q3	us-gaap	Deferred Revenue DeferredRevenue	23123000	usd
CY2022Q3	us-gaap	Deferred Revenue DeferredRevenue	18795000	usd
CY2021Q3	us-gaap	Deferred Revenue DeferredRevenue	20144000	usd
CY2024	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	13245000	usd
CY2023	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	12013000	usd
CY2022	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	6847000	usd
CY2024	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	8406000	usd
CY2023	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	7685000	usd
CY2022	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	8196000	usd
CY2024Q3	us-gaap	Deferred Revenue DeferredRevenue	27962000	usd
CY2023Q3	us-gaap	Deferred Revenue DeferredRevenue	23123000	usd
CY2022Q3	us-gaap	Deferred Revenue DeferredRevenue	18795000	usd
CY2024Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	9400000	usd
CY2024Q3	blbd	Funds Payable Us Infrastructure Investment And Jobs Act FundsPayableUSInfrastructureInvestmentAndJobsAct	2200000	usd
CY2024Q3	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	59199000	usd
CY2023Q3	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	12674000	usd
CY2024Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	100000	usd
CY2023Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	100000	usd
CY2024Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	59099000	usd
CY2023Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	12574000	usd
CY2023Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15434000	usd
CY2022Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15970000	usd
CY2021Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	18550000	usd
CY2024	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	9985000	usd
CY2023	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	9084000	usd
CY2022	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	7348000	usd
CY2024	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	-9240000	usd
CY2023	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	-9620000	usd
CY2022	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	-9928000	usd
CY2024Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	16179000	usd
CY2022Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15970000	usd
CY2023Q3	us-gaap	Deferred Revenue DeferredRevenue	23123000	usd
CY2022Q3	us-gaap	Deferred Revenue DeferredRevenue	18795000	usd
CY2021Q3	us-gaap	Deferred Revenue DeferredRevenue	20144000	usd
CY2024	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	13245000	usd
CY2023	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	12013000	usd
CY2022	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	6847000	usd
CY2024	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	8406000	usd
CY2023	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	7685000	usd
CY2022	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	8196000	usd
CY2024Q3	us-gaap	Deferred Revenue DeferredRevenue	27962000	usd
CY2022Q3	us-gaap	Deferred Revenue DeferredRevenue	18795000	usd
CY2024Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	9400000	usd
CY2024Q3	blbd	Funds Payable Us Infrastructure Investment And Jobs Act FundsPayableUSInfrastructureInvestmentAndJobsAct	2200000	usd
CY2024Q3	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	5008000	usd
CY2023Q3	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	4475000	usd
CY2024Q3	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	2248000	usd
CY2023Q3	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	1771000	usd
CY2024Q3	us-gaap	Self Insurance Reserve SelfInsuranceReserve	7256000	usd
CY2023Q3	us-gaap	Self Insurance Reserve SelfInsuranceReserve	6246000	usd
CY2024	blbd	Shippingand Handling Revenue1 ShippingandHandlingRevenue1	21700000	usd
CY2023	blbd	Shippingand Handling Revenue1 ShippingandHandlingRevenue1	18500000	usd
CY2022	blbd	Shippingand Handling Revenue1 ShippingandHandlingRevenue1	16000000.0	usd
CY2024	blbd	Shipping Handling And Transportation Costs1 ShippingHandlingAndTransportationCosts1	19900000	usd
CY2023	blbd	Shipping Handling And Transportation Costs1 ShippingHandlingAndTransportationCosts1	16600000	usd
CY2022	blbd	Shipping Handling And Transportation Costs1 ShippingHandlingAndTransportationCosts1	14300000	usd
CY2024Q3	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	5008000	usd
CY2023Q3	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	4475000	usd
CY2024Q3	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	2248000	usd
CY2023Q3	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	1771000	usd
CY2024Q3	us-gaap	Self Insurance Reserve SelfInsuranceReserve	7256000	usd
CY2023Q3	us-gaap	Self Insurance Reserve SelfInsuranceReserve	6246000	usd
CY2024	blbd	Shippingand Handling Revenue1 ShippingandHandlingRevenue1	21700000	usd
CY2023	blbd	Shippingand Handling Revenue1 ShippingandHandlingRevenue1	18500000	usd
CY2022	blbd	Shippingand Handling Revenue1 ShippingandHandlingRevenue1	16000000.0	usd
CY2024	blbd	Shipping Handling And Transportation Costs1 ShippingHandlingAndTransportationCosts1	19900000	usd
CY2023	blbd	Shipping Handling And Transportation Costs1 ShippingHandlingAndTransportationCosts1	16600000	usd
CY2022	blbd	Shipping Handling And Transportation Costs1 ShippingHandlingAndTransportationCosts1	14300000	usd
CY2024Q3	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	83027000	usd
CY2023Q3	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	88116000	usd
CY2024Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	32556000	usd
CY2023Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	45875000	usd
CY2024Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	12215000	usd
CY2023Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	1295000	usd
CY2024Q3	us-gaap	Inventory Net InventoryNet	127798000	usd
CY2023Q3	us-gaap	Inventory Net InventoryNet	135286000	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	8800000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	224382000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	212126000	usd
CY2024Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	131413000	usd
CY2023Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	121323000	usd
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4298000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	97322000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	95101000	usd
CY2024	us-gaap	Depreciation Depreciation	12200000	usd
CY2023	us-gaap	Depreciation Depreciation	13300000	usd
CY2024Q3	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	83027000	usd
CY2023Q3	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	88116000	usd
CY2024Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	32556000	usd
CY2023Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	45875000	usd
CY2024Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	12215000	usd
CY2023Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	1295000	usd
CY2024Q3	us-gaap	Inventory Net InventoryNet	127798000	usd
CY2023Q3	us-gaap	Inventory Net InventoryNet	135286000	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	8800000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	224382000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	212126000	usd
CY2024Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	131413000	usd
CY2023Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	121323000	usd
CY2024Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4353000	usd
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4298000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	97322000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	95101000	usd
CY2024	us-gaap	Depreciation Depreciation	12200000	usd
CY2023	us-gaap	Depreciation Depreciation	13300000	usd
CY2022	us-gaap	Depreciation Depreciation	10900000	usd
CY2024Q3	us-gaap	Accumulated Capitalized Interest Costs AccumulatedCapitalizedInterestCosts	300000	usd
CY2022	us-gaap	Depreciation Depreciation	10900000	usd
CY2024Q3	us-gaap	Accumulated Capitalized Interest Costs AccumulatedCapitalizedInterestCosts	300000	usd
CY2024Q3	us-gaap	Goodwill Gross GoodwillGross	18825000	usd
CY2024Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	usd
CY2024Q3	us-gaap	Goodwill Goodwill	18825000	usd
CY2023Q3	us-gaap	Goodwill Gross GoodwillGross	18825000	usd
CY2023Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	usd
CY2023Q3	us-gaap	Goodwill Goodwill	18825000	usd
CY2024	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2023	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	40581000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	36843000	usd
CY2024Q3	us-gaap	Goodwill Gross GoodwillGross	18825000	usd
CY2024Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	usd
CY2024Q3	us-gaap	Goodwill Goodwill	18825000	usd
CY2023Q3	us-gaap	Goodwill Gross GoodwillGross	18825000	usd
CY2023Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	usd
CY2023Q3	us-gaap	Goodwill Goodwill	18825000	usd
CY2024	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2023	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	40581000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	36843000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3738000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	40581000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	34973000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5608000	usd
CY2024Q3	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	80397000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	36843000	usd
CY2024Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	43554000	usd
CY2023Q3	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	80397000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	34973000	usd
CY2023Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	45424000	usd
CY2023	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	usd
CY2024	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3738000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	40581000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	34973000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5608000	usd
CY2024Q3	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	80397000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	36843000	usd
CY2024Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	43554000	usd
CY2023Q3	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	80397000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	34973000	usd
CY2023Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	45424000	usd
CY2023	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	usd
CY2024	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	usd
CY2024	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1900000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2000000.0	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2000000.0	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1869000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1869000	usd
CY2023Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	19800000	usd
CY2024Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	89994000	usd
CY2023Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	110544000	usd
CY2024	us-gaap	Interest Expense Debt InterestExpenseDebt	10600000	usd
CY2023	us-gaap	Interest Expense Debt InterestExpenseDebt	18000000.0	usd
CY2022	us-gaap	Interest Expense Debt InterestExpenseDebt	14700000	usd
CY2024Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	5000000	usd
CY2024Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	5000000	usd
CY2024Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	5000000	usd
CY2024Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	96250000	usd
CY2024	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1900000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2000000.0	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2000000.0	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1869000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1869000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3738000	usd
CY2018Q3	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	2000000.0	usd
CY2024Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	5000000	usd
CY2023Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	19800000	usd
CY2024Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	89994000	usd
CY2023Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	110544000	usd
CY2024	us-gaap	Interest Expense Debt InterestExpenseDebt	10600000	usd
CY2023	us-gaap	Interest Expense Debt InterestExpenseDebt	18000000.0	usd
CY2022	us-gaap	Interest Expense Debt InterestExpenseDebt	14700000	usd
CY2024Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	5000000	usd
CY2024Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	5000000	usd
CY2024Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	5000000	usd
CY2024Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	96250000	usd
CY2024	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	30188000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	645000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	645000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-380000	usd
CY2024	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4447000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	243000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	0	usd
CY2024	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	267000	usd
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	usd
CY2024	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	34902000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	888000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-380000	usd
CY2024	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2046000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	6230000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-10862000	usd
CY2024	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	372000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1835000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-209000	usd
CY2024	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1674000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	8065000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-11071000	usd
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33228000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8953000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-11451000	usd
CY2024	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.262
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.347
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.216
CY2024	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2024	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.262
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.347
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	5419000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-11141000	usd
CY2024	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4808000	usd
CY2023	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1700000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-2240000	usd
CY2024	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	0	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-240000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-395000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	513000	usd
CY2024	blbd	Effective Income Tax Rate Reconciliation Nondeductible Expense Permanent Differences Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpensePermanentDifferencesAmount	700000	usd
CY2023	blbd	Effective Income Tax Rate Reconciliation Nondeductible Expense Permanent Differences Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpensePermanentDifferencesAmount	1582000	usd
CY2022	blbd	Effective Income Tax Rate Reconciliation Nondeductible Expense Permanent Differences Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpensePermanentDifferencesAmount	31000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-380000	usd
CY2024	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4447000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	243000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	0	usd
CY2024	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	267000	usd
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	usd
CY2024	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	34902000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	888000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-380000	usd
CY2024	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2046000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	6230000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-10862000	usd
CY2024	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	372000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1835000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-209000	usd
CY2024	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1674000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	8065000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-11071000	usd
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33228000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8953000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-11451000	usd
CY2024	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.262
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.347
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.216
CY2024	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2024	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.262
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.347
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.216
CY2024	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	26594000	usd
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	5419000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-11141000	usd
CY2024	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4808000	usd
CY2023	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1700000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-2240000	usd
CY2024	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	0	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-240000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-395000	usd
CY2024	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	675000	usd
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	95000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	513000	usd
CY2024	blbd	Effective Income Tax Rate Reconciliation Nondeductible Expense Permanent Differences Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpensePermanentDifferencesAmount	700000	usd
CY2023	blbd	Effective Income Tax Rate Reconciliation Nondeductible Expense Permanent Differences Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpensePermanentDifferencesAmount	1582000	usd
CY2022	blbd	Effective Income Tax Rate Reconciliation Nondeductible Expense Permanent Differences Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpensePermanentDifferencesAmount	31000	usd
CY2024	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	17000	usd
CY2023	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	319000	usd
CY2022	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	2050000	usd
CY2024	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	273000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	330000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	285000	usd
CY2024	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-4000	usd
CY2023	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-3000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	212000	usd
CY2024	blbd	Effective Income Tax Rate Reconciliation Equityin Earningsof Equity Method Investments Amount EffectiveIncomeTaxRateReconciliationEquityinEarningsofEquityMethodInvestmentsAmount	700000	usd
CY2023	blbd	Effective Income Tax Rate Reconciliation Equityin Earningsof Equity Method Investments Amount EffectiveIncomeTaxRateReconciliationEquityinEarningsofEquityMethodInvestmentsAmount	404000	usd
CY2022	blbd	Effective Income Tax Rate Reconciliation Equityin Earningsof Equity Method Investments Amount EffectiveIncomeTaxRateReconciliationEquityinEarningsofEquityMethodInvestmentsAmount	-231000	usd
CY2024	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	11000	usd
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	7000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	35000	usd
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33228000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8953000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-11451000	usd
CY2023Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	110000	usd
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	370000	usd
CY2024	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2024	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	usd
CY2023	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	110000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	260000	usd
CY2024Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2023Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	110000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	9894000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	10880000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	10679000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	11167000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	1261000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	866000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Other Finite Lived Assets DeferredTaxLiabilitiesOtherFiniteLivedAssets	566000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Other Finite Lived Assets DeferredTaxLiabilitiesOtherFiniteLivedAssets	0	usd
CY2024Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	22400000	usd
CY2023Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	22913000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	731000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	1168000	usd
CY2024	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	17000	usd
CY2023	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	319000	usd
CY2022	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	2050000	usd
CY2024	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	273000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	330000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	285000	usd
CY2024	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-4000	usd
CY2023	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-3000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	212000	usd
CY2024	blbd	Effective Income Tax Rate Reconciliation Equityin Earningsof Equity Method Investments Amount EffectiveIncomeTaxRateReconciliationEquityinEarningsofEquityMethodInvestmentsAmount	700000	usd
CY2023	blbd	Effective Income Tax Rate Reconciliation Equityin Earningsof Equity Method Investments Amount EffectiveIncomeTaxRateReconciliationEquityinEarningsofEquityMethodInvestmentsAmount	404000	usd
CY2022	blbd	Effective Income Tax Rate Reconciliation Equityin Earningsof Equity Method Investments Amount EffectiveIncomeTaxRateReconciliationEquityinEarningsofEquityMethodInvestmentsAmount	-231000	usd
CY2024	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	11000	usd
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	7000	usd
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33228000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8953000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-11451000	usd
CY2023Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	370000	usd
CY2024	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2024	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	usd
CY2023	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	110000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	260000	usd
CY2024Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2023Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	110000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	9894000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	10880000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	10679000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	11167000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	1261000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	866000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Other Finite Lived Assets DeferredTaxLiabilitiesOtherFiniteLivedAssets	566000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Other Finite Lived Assets DeferredTaxLiabilitiesOtherFiniteLivedAssets	0	usd
CY2024Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	22400000	usd
CY2023Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	22913000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	731000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	1168000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	8017000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	5586000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2257000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2839000	usd
CY2024Q3	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	0	usd
CY2024Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	8017000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	5586000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2257000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2839000	usd
CY2024Q3	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	0	usd
CY2023Q3	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	5235000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	812000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	743000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	5035000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3052000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	4301000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	3096000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	6702000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	6685000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	27855000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	28404000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	5839000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	5822000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	22016000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	22582000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	384000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	331000	usd
CY2024Q3	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	500000	usd
CY2023Q3	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	300000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P1Y
CY2024	us-gaap	Operating Lease Cost OperatingLeaseCost	2031000	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	2188000	usd
CY2024	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	702000	usd
CY2023	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	702000	usd
CY2024	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	40000	usd
CY2023	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	60000	usd
CY2024	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1720000	usd
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1993000	usd
CY2024	us-gaap	Lease Cost LeaseCost	4493000	usd
CY2023	us-gaap	Lease Cost LeaseCost	4943000	usd
CY2024Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4353000	usd
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4298000	usd
CY2024Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	332000	usd
CY2023Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1034000	usd
CY2024Q3	blbd	Lease Right Of Use Asset LeaseRightOfUseAsset	4685000	usd
CY2023Q3	blbd	Lease Right Of Use Asset LeaseRightOfUseAsset	5332000	usd
CY2024Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1873000	usd
CY2023Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1593000	usd
CY2024Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	975000	usd
CY2023Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	583000	usd
CY2024Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	2971000	usd
CY2024Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	6000	usd
CY2023Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	987000	usd
CY2024Q3	blbd	Lease Liability LeaseLiability	5825000	usd
CY2023Q3	blbd	Lease Liability LeaseLiability	6771000	usd
CY2024Q3	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	3200000	usd
CY2023Q3	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	5235000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	812000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	743000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	5035000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3052000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	4301000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	3096000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	6702000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	6685000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	27855000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	28404000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	5839000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	5822000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	22016000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	22582000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	384000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	331000	usd
CY2024Q3	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	500000	usd
CY2023Q3	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	300000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P1Y
CY2024	us-gaap	Operating Lease Cost OperatingLeaseCost	2031000	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	2188000	usd
CY2024	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	702000	usd
CY2023	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	702000	usd
CY2024	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	40000	usd
CY2023	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	60000	usd
CY2024	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1720000	usd
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1993000	usd
CY2024	us-gaap	Lease Cost LeaseCost	4493000	usd
CY2024Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4353000	usd
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4298000	usd
CY2024Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	332000	usd
CY2023Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1034000	usd
CY2024Q3	blbd	Lease Right Of Use Asset LeaseRightOfUseAsset	4685000	usd
CY2024Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1873000	usd
CY2023Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1593000	usd
CY2024Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	975000	usd
CY2023Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	583000	usd
CY2024Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	2971000	usd
CY2023Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	3608000	usd
CY2024Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	6000	usd
CY2023Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	987000	usd
CY2024Q3	blbd	Lease Liability LeaseLiability	5825000	usd
CY2023Q3	blbd	Lease Liability LeaseLiability	6771000	usd
CY2024Q3	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	3200000	usd
CY2023Q3	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	2500000	usd
CY2023Q3	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	2500000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2149000	usd
CY2024Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	994000	usd
CY2024Q3	blbd	Lease Liability Payments Due Next Twelve Months LeaseLiabilityPaymentsDueNextTwelveMonths	3143000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1852000	usd
CY2024Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	0	usd
CY2024Q3	blbd	Lease Liability Payments Due Year Two LeaseLiabilityPaymentsDueYearTwo	1852000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	866000	usd
CY2024Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	0	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	301000	usd
CY2024Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	0	usd
CY2024Q3	blbd	Lease Liability Payments Due Year Four LeaseLiabilityPaymentsDueYearFour	301000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	184000	usd
CY2024Q3	blbd	Lease Liability Payments Due Year Five LeaseLiabilityPaymentsDueYearFive	184000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	65000	usd
CY2024Q3	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	usd
CY2024Q3	blbd	Lease Liability Payments Due After Year Five LeaseLiabilityPaymentsDueAfterYearFive	65000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	5417000	usd
CY2024Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	994000	usd
CY2024Q3	blbd	Lease Liability Payments Due LeaseLiabilityPaymentsDue	6411000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	573000	usd
CY2024Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	13000	usd
CY2024Q3	blbd	Lease Liability Undiscounted Excess Amount LeaseLiabilityUndiscountedExcessAmount	586000	usd
CY2024Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	4844000	usd
CY2024Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	981000	usd
CY2024Q3	blbd	Lease Liability LeaseLiability	5825000	usd
CY2024Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P2Y9M18D
CY2024Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P0Y6M
CY2024Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.060
CY2024Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.032
CY2024	us-gaap	Operating Lease Payments OperatingLeasePayments	2442000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	2688000	usd
CY2024	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	40000	usd
CY2023	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	60000	usd
CY2024	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	589000	usd
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	570000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2149000	usd
CY2024Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	994000	usd
CY2024Q3	blbd	Lease Liability Payments Due Next Twelve Months LeaseLiabilityPaymentsDueNextTwelveMonths	3143000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1852000	usd
CY2024Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	0	usd
CY2024Q3	blbd	Lease Liability Payments Due Year Two LeaseLiabilityPaymentsDueYearTwo	1852000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	866000	usd
CY2024Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	0	usd
CY2024Q3	blbd	Lease Liability Payments Due Year Three LeaseLiabilityPaymentsDueYearThree	866000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	301000	usd
CY2024Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	0	usd
CY2024Q3	blbd	Lease Liability Payments Due Year Four LeaseLiabilityPaymentsDueYearFour	301000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	184000	usd
CY2024Q3	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	usd
CY2024Q3	blbd	Lease Liability Payments Due Year Five LeaseLiabilityPaymentsDueYearFive	184000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	65000	usd
CY2024Q3	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	usd
CY2024Q3	blbd	Lease Liability Payments Due After Year Five LeaseLiabilityPaymentsDueAfterYearFive	65000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	5417000	usd
CY2024Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	994000	usd
CY2024Q3	blbd	Lease Liability Payments Due LeaseLiabilityPaymentsDue	6411000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	573000	usd
CY2024Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	13000	usd
CY2024Q3	blbd	Lease Liability Undiscounted Excess Amount LeaseLiabilityUndiscountedExcessAmount	586000	usd
CY2024Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	4844000	usd
CY2024Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	981000	usd
CY2024Q3	blbd	Lease Liability LeaseLiability	5825000	usd
CY2024Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P2Y9M18D
CY2024Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P0Y6M
CY2024Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.060
CY2024Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.032
CY2024	us-gaap	Operating Lease Payments OperatingLeasePayments	2442000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	2688000	usd
CY2024	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	40000	usd
CY2023	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	60000	usd
CY2024	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	589000	usd
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	570000	usd
CY2024	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1682000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	626000	usd
CY2024Q3	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	134121000	usd
CY2024Q3	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	1953000	usd
CY2024Q3	us-gaap	Purchase Obligation PurchaseObligation	136074000	usd
CY2024	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2024	us-gaap	Gross Profit GrossProfit	256156000	usd
CY2024	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	126936000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-53051000	usd
CY2024	us-gaap	Revenues Revenues	1347154000	usd
CY2023	us-gaap	Revenues Revenues	1132793000	usd
CY2022	us-gaap	Revenues Revenues	800637000	usd
CY2024	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1682000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	626000	usd
CY2024Q3	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	134121000	usd
CY2024Q3	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	1953000	usd
CY2024Q3	us-gaap	Purchase Obligation PurchaseObligation	136074000	usd
CY2024	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2024	us-gaap	Gross Profit GrossProfit	256156000	usd
CY2023	us-gaap	Gross Profit GrossProfit	138850000	usd
CY2022	us-gaap	Gross Profit GrossProfit	36546000	usd
CY2024	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	126936000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	25805000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-53051000	usd
CY2024	us-gaap	Revenues Revenues	1347154000	usd
CY2023	us-gaap	Revenues Revenues	1132793000	usd
CY2022	us-gaap	Revenues Revenues	800637000	usd
CY2024	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1347154000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1132793000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	800637000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	105547000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	23812000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45759000	usd
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32270711	shares
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32071940	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31020399	shares
CY2024	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.27
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.48
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32270711	shares
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32071940	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31020399	shares
CY2024	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	283061	shares
CY2023	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	19992	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2024	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	33349221	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32258652	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31020399	shares
CY2024	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.16
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.48
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	5200000	shares
CY2024Q3	blbd	Share Based Compensation Arrangement By Share Based Payment Award Options Exercise Percentage Of Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisePercentageOfFairValue	1
CY2024	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1347154000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1132793000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	800637000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	105547000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	23812000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45759000	usd
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32270711	shares
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32071940	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31020399	shares
CY2024	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.27
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.48
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32270711	shares
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	32071940	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31020399	shares
CY2024	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	283061	shares
CY2023	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	19992	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2024	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	33349221	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	32258652	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31020399	shares
CY2024	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.16
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.48
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	5200000	shares
CY2024Q3	blbd	Share Based Compensation Arrangement By Share Based Payment Award Options Exercise Percentage Of Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisePercentageOfFairValue	1
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	640353	shares
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.38
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	63300	shares
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	14.45
CY2024	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	248015	shares
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	16.27
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	4442	shares
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	15.62
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	15769	shares
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	13.62
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	435427	shares
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.27
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	278678	shares
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	17.58
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	6200000	usd
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	14000000.0	usd
CY2024Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	8600000	usd
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	300000	usd
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	100000	usd
CY2024	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1200000	usd
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	800000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	900000	usd
CY2024	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	300000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	200000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	200000	usd
CY2024Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	500000	usd
CY2024	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P0Y8M12D
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	640353	shares
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.38
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	63300	shares
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	14.45
CY2024	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	248015	shares
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	16.27
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	4442	shares
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	15.62
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	15769	shares
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	13.62
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	435427	shares
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.27
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	278678	shares
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	17.58
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	6200000	usd
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	14000000.0	usd
CY2024Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	8600000	usd
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	300000	usd
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	100000	usd
CY2024	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1200000	usd
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	800000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	900000	usd
CY2024	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	300000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	200000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	200000	usd
CY2024Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	500000	usd
CY2024	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P0Y8M12D
CY2024Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	8676000	usd
CY2024Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	8701000	usd
CY2024Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	8682000	usd
CY2024Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	8624000	usd
CY2024Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	8547000	usd
CY2024Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	40614000	usd
CY2024Q3	blbd	Defined Benefit Plan Expected Future Benefit Payments DefinedBenefitPlanExpectedFutureBenefitPayments	83844000	usd
CY2024	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.50
CY2024	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.06
CY2024	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2300000	usd
CY2023	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1300000	usd
CY2022	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1600000	usd
CY2024	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	13700000	usd
CY2023	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	15300000	usd
CY2022	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	13600000	usd
CY2024Q3	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	17400000	usd
CY2023Q3	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	8300000	usd
CY2009Q4	blbd	Equity Method Investment Numberof Manufacturers EquityMethodInvestmentNumberofManufacturers	2	manufacturer
CY2024	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2024Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	8676000	usd
CY2024Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	8701000	usd
CY2024Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	8682000	usd
CY2024Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	8624000	usd
CY2024Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	8547000	usd
CY2024Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	40614000	usd
CY2024Q3	blbd	Defined Benefit Plan Expected Future Benefit Payments DefinedBenefitPlanExpectedFutureBenefitPayments	83844000	usd
CY2024	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.50
CY2024	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.06
CY2024	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2300000	usd
CY2023	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1300000	usd
CY2022	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1600000	usd
CY2024	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	13700000	usd
CY2023	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	15300000	usd
CY2022	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	13600000	usd
CY2024Q3	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	17400000	usd
CY2023Q3	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	8300000	usd
CY2009Q4	blbd	Equity Method Investment Numberof Manufacturers EquityMethodInvestmentNumberofManufacturers	2	manufacturer
CY2024	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2024	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2024	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2024	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2024	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false

Files In Submission

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report.css	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable

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$BLBD
Blue Bird Corp Stock $blbd

2024 Q4 Form 10-K Financial Statement

#000158952624000119 Filed on November 25, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BLBD Blue Bird Corp Stock $blbd

2024 Q4 Form 10-K Financial Statement

#000158952624000119 Filed on November 25, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BLBD
Blue Bird Corp Stock $blbd