$BLBD
Blue Bird Corp Stock $blbd

$blbd Overview Financials Valuation SEC Filings Company Website

2023 Q4 Form 10-K Financial Statement

#000158952623000124 Filed on December 11, 2023

Income Statement

Concept	2023 Q4	2023 Q3	2023
Revenue	$317.7M	$294.3M	$1.133B
YoY Change	23.28%	42.8%	41.49%
Cost Of Revenue	$254.1M	$248.5M	$993.9M
YoY Change	-3.04%	34.71%	30.08%
Gross Profit	$63.56M	$45.75M	$138.9M
YoY Change	-1544.17%	111.87%	279.93%
Gross Profit Margin	20.01%	15.55%	12.26%
Selling, General & Admin	$25.60M	$26.33M	$87.19M
YoY Change	37.28%	28.4%	12.88%
% of Gross Profit	40.28%	57.55%	62.8%
Research & Development			$6.600M
YoY Change			8.2%
% of Gross Profit			4.75%
Depreciation & Amortization	$3.618M	$5.009M	$15.98M
YoY Change	-8.66%	46.85%	13.72%
% of Gross Profit	5.69%	10.95%	11.51%
Operating Expenses	$25.60M	$26.33M	$93.79M
YoY Change	37.28%	28.4%	12.53%
Operating Profit	$37.96M	$19.42M	$51.66M
YoY Change	-264.66%	1685.11%	-226.92%
Interest Expense	$3.631M	$4.507M	$18.01M
YoY Change	-170.03%	15.33%	22.74%
% of Operating Profit	9.57%	23.21%	34.87%
Other Income/Expense, Net	-$1.221M	-$6.421M	-$8.307M
YoY Change	-266.8%	-973.61%	-381.88%
Pretax Income	$32.63M	$8.740M	$25.81M
YoY Change	-218.35%	-519.18%	-148.64%
Income Tax	$8.446M	$1.884M	$8.953M
% Of Pretax Income	25.88%	21.56%	34.69%
Net Earnings	$26.15M	$9.358M	$23.81M
YoY Change	-213.23%	-245.42%	-152.04%
Net Earnings / Revenue	8.23%	3.18%	2.1%
Basic Earnings Per Share	$0.81	$0.29	$0.74
Diluted Earnings Per Share	$0.81	$0.29	$0.74
COMMON SHARES
Basic Shares Outstanding	32.17M shares	32.07M shares	32.07M shares
Diluted Shares Outstanding	32.43M shares	32.60M shares	32.26M shares

Balance Sheet

Concept	2023 Q4	2023 Q3	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$77.30M	$50.50M	$78.99M
YoY Change	637.63%	90.49%	653.77%
Cash & Equivalents	$77.30M	$50.50M	$78.99M
Short-Term Investments
Other Short-Term Assets	$12.49M	$9.614M	$9.215M
YoY Change	47.12%	-2.9%	8.59%
Inventory	$142.5M	$129.2M	$135.3M
Prepaid Expenses
Receivables	$11.11M	$11.43M	$12.57M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$243.3M	$200.7M	$236.1M
YoY Change	39.47%	-24.58%	35.3%
LONG-TERM ASSETS
Property, Plant & Equipment	$95.56M	$96.09M	$96.14M
YoY Change	-5.01%	-5.91%	-6.07%
Goodwill	$18.83M	$18.83M
YoY Change	0.0%	0.0%
Intangibles	$44.96M	$45.93M
YoY Change	-5.22%	-4.19%
Long-Term Investments	$24.01M	$14.83M	$17.62M
YoY Change	125.23%	31.06%	65.3%
Other Assets	$2.723M	$1.802M	$3.700M
YoY Change	83.74%	2.1%	-70.13%
Total Long-Term Assets	$187.9M	$189.3M	$181.7M
YoY Change	-1.94%	-3.92%	-5.19%
TOTAL ASSETS
Total Short-Term Assets	$243.3M	$200.7M	$236.1M
Total Long-Term Assets	$187.9M	$189.3M	$181.7M
Total Assets	$431.3M	$390.0M	$417.8M
YoY Change	17.79%	-15.8%	14.1%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$113.9M	$136.2M	$137.1M
YoY Change	5.53%	4.83%	27.06%
Accrued Expenses	$39.06M	$35.09M	$41.20M
YoY Change	69.28%	39.76%	63.35%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$5.000M	$19.80M	$20.38M
YoY Change	-74.75%	6.66%	0.08%
Total Short-Term Liabilities	$187.8M	$217.7M	$229.6M
YoY Change	13.97%	16.58%	39.35%
LONG-TERM LIABILITIES
Long-Term Debt	$93.49M	$115.1M	$111.5M
YoY Change	-28.3%	-14.73%	-26.61%
Other Long-Term Liabilities	$8.522M	$8.181M	$34.10M
YoY Change	-23.27%	-31.14%	-28.96%
Total Long-Term Liabilities	$167.9M	$161.9M	$145.6M
YoY Change	-16.04%	-36.38%	-27.17%
TOTAL LIABILITIES
Total Short-Term Liabilities	$187.8M	$217.7M	$229.6M
Total Long-Term Liabilities	$167.9M	$161.9M	$145.6M
Total Liabilities	$355.7M	$379.6M	$377.8M
YoY Change	-2.48%	-13.97%	3.57%
SHAREHOLDERS EQUITY
Retained Earnings	-$29.55M	-$74.32M
YoY Change	-62.84%	31.73%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$50.28M	$50.28M
YoY Change	0.0%	0.0%
Treasury Stock Shares
Shareholders Equity	$75.58M	$10.44M	$40.00M
YoY Change
Total Liabilities & Shareholders Equity	$431.3M	$390.0M	$417.8M
YoY Change	17.79%	-15.8%	14.1%

Cashflow Statement

Concept	2023 Q4	2023 Q3	2023
OPERATING ACTIVITIES
Net Income	$26.15M	$9.358M	$23.81M
YoY Change	-213.23%	-245.42%	-152.04%
Depreciation, Depletion And Amortization	$3.618M	$5.009M	$15.98M
YoY Change	-8.66%	46.85%	13.72%
Cash From Operating Activities	$217.0K	$39.42M	$119.9M
YoY Change	-99.28%	-191.58%	-590.76%
INVESTING ACTIVITIES
Capital Expenditures	$2.904M	$2.650M	$8.520M
YoY Change	-270.32%	-308.66%	-232.03%
Acquisitions
YoY Change
Other Investing Activities	$0.00	$0.00	$0.00
YoY Change
Cash From Investing Activities	-$2.904M	-$2.650M	-$8.520M
YoY Change	70.32%	108.66%	32.03%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$376.0K
YoY Change			-100.51%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$995.0K	-4.041M	-$42.90M
YoY Change	-102.24%	-107.22%	-244.64%
NET CHANGE
Cash From Operating Activities	$217.0K	39.42M	$119.9M
Cash From Investing Activities	-$2.904M	-2.650M	-$8.520M
Cash From Financing Activities	$995.0K	-4.041M	-$42.90M
Net Change In Cash	-$1.692M	32.72M	$68.51M
YoY Change	-89.44%	181.09%	-5669.84%
FREE CASH FLOW
Cash From Operating Activities	$217.0K	$39.42M	$119.9M
Capital Expenditures	$2.904M	$2.650M	$8.520M
Free Cash Flow	-$2.687M	$36.77M	$111.4M
YoY Change	-108.47%	-188.02%	-719.48%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-8307000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2947000	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-632000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-1978000	usd
CY2022	blbd	Defined Benefit Plan Amortizationof Deferred Gains Losses DefinedBenefitPlanAmortizationofDeferredGainsLosses	-3768000	usd
CY2021	blbd	Defined Benefit Plan Amortizationof Deferred Gains Losses DefinedBenefitPlanAmortizationofDeferredGainsLosses	-1861000	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
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	40000	usd
CY2023Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2018Q4	blbd	Derivative Cap Interest Rate Term DerivativeCapInterestRateTerm	P4Y
CY2023	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/20230930#AccruedLiabilitiesExcludingProductWarrantyAccrualCurrent
CY2022Q4	us-gaap	Environmental Loss Contingency Statement Of Financial Position Extensible Enumeration EnvironmentalLossContingencyStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent http://www.blue-bird.com/20230930#AccruedLiabilitiesExcludingProductWarrantyAccrualCurrent
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentNet
CY2022Q4	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 Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesCurrent
CY2022Q4	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
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
CY2023	dei	Auditor Name AuditorName	BDO USA, P.C.
CY2023	dei	Auditor Location AuditorLocation	Atlanta, Georgia
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	78988000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	10479000	usd
CY2023Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	12574000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	12534000	usd
CY2023Q3	us-gaap	Inventory Net InventoryNet	135286000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	142977000	usd
CY2023Q3	us-gaap	Other Assets Current OtherAssetsCurrent	9215000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	8486000	usd
CY2023Q3	us-gaap	Assets Current AssetsCurrent	236063000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	174476000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	95101000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	100608000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	18825000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	18825000	usd
CY2023Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	45424000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	47433000	usd
CY2023Q3	us-gaap	Equity Method Investments EquityMethodInvestments	17619000	usd
CY2022Q4	us-gaap	Equity Method Investments EquityMethodInvestments	10659000	usd
CY2023Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	2182000	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	10907000	usd
CY2023Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1034000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1736000	usd
CY2023Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1518000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1482000	usd
CY2023Q3	us-gaap	Assets Assets	417766000	usd
CY2022Q4	us-gaap	Assets Assets	366126000	usd
CY2023Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	137140000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	107937000	usd
CY2023Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	6711000	usd
CY2022Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	6685000	usd
CY2023Q3	blbd	Accrued Liabilities Excluding Product Warranty Accrual Current AccruedLiabilitiesExcludingProductWarrantyAccrualCurrent	32894000	usd
CY2022Q4	blbd	Accrued Liabilities Excluding Product Warranty Accrual Current AccruedLiabilitiesExcludingProductWarrantyAccrualCurrent	16386000	usd
CY2023Q3	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	8101000	usd
CY2022Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	7205000	usd
CY2023Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	583000	usd
CY2022Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	566000	usd
CY2023Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	24391000	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	6195000	usd
CY2023Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	19800000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	19800000	usd
CY2023Q3	us-gaap	Liabilities Current LiabilitiesCurrent	229620000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	164774000	usd
CY2023Q3	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	0	usd
CY2022Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	20000000	usd
CY2023Q3	us-gaap	Mediumterm Notes Noncurrent MediumtermNotesNoncurrent	110544000	usd
CY2022Q4	us-gaap	Mediumterm Notes Noncurrent MediumtermNotesNoncurrent	130390000	usd
CY2023Q3	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	8723000	usd
CY2022Q4	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	9285000	usd
CY2023Q3	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	15022000	usd
CY2022Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	11590000	usd
CY2023Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	2513000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	0	usd
CY2023Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	987000	usd
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	1574000	usd
CY2023Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	7955000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	11107000	usd
CY2023Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	2404000	usd
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	16024000	usd
CY2023Q3	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	148148000	usd
CY2022Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	199970000	usd
CY2023Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2023Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2023Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2023Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q3	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	0	usd
CY2022Q4	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	0	usd
CY2023Q3	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0	usd
CY2022Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0	usd
CY2023Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2023Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2023Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	32165225	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	32024911	shares
CY2023Q3	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	3000	usd
CY2022Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	3000	usd
CY2023Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	177861000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	173103000	usd
CY2023Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-55700000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-79512000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-31884000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-41930000	usd
CY2022Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	1782568	shares
CY2023Q3	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	1782568	shares
CY2023Q3	us-gaap	Treasury Stock Value TreasuryStockValue	50282000	usd
CY2022Q4	us-gaap	Treasury Stock Value TreasuryStockValue	50282000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	39998000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1382000	usd
CY2023Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	417766000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	366126000	usd
CY2023	us-gaap	Revenues Revenues	1132793000	usd
CY2022	us-gaap	Revenues Revenues	800637000	usd
CY2021	us-gaap	Revenues Revenues	683995000	usd
CY2023	us-gaap	Cost Of Revenue CostOfRevenue	993943000	usd
CY2022	us-gaap	Cost Of Revenue CostOfRevenue	764091000	usd
CY2021	us-gaap	Cost Of Revenue CostOfRevenue	611854000	usd
CY2023	us-gaap	Gross Profit GrossProfit	138850000	usd
CY2022	us-gaap	Gross Profit GrossProfit	36546000	usd
CY2021	us-gaap	Gross Profit GrossProfit	72141000	usd
CY2023	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	87193000	usd
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	77246000	usd
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	65619000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	51657000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	-40700000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	6522000	usd
CY2023	us-gaap	Interest Expense InterestExpense	18012000	usd
CY2022	us-gaap	Interest Expense InterestExpense	14675000	usd
CY2021	us-gaap	Interest Expense InterestExpense	9682000	usd
CY2023	us-gaap	Investment Income Interest InvestmentIncomeInterest	1004000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	9000	usd
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	4000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1776000	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-598000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	23812000	usd
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
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	27139054	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.48
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.01
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.48
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.01
CY2023	us-gaap	Net Income Loss NetIncomeLoss	23812000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45759000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-289000	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
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-13603000	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
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	13603000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	33858000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-42895000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	13314000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	23812000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45759000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-289000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	15978000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	14050000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	13446000	usd
CY2023	us-gaap	Paid In Kind Interest PaidInKindInterest	1470000	usd
CY2022	us-gaap	Paid In Kind Interest PaidInKindInterest	3400000	usd
CY2021	us-gaap	Paid In Kind Interest PaidInKindInterest	2754000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	4173000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	3690000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	5938000	usd
CY2023	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	6960000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-4159000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	498000	usd
CY2023	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-64000	usd
CY2022	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-15000	usd
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	679000	usd
CY2023	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	1354000	usd
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2023	us-gaap	Inventory Write Down InventoryWriteDown	0	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	8752000	usd
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	0	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-925000	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-598000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2567000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2345000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-7691000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	26523000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	68684000	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
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	409000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	28712000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	35075000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	14081000	usd
CY2023	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	34778000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-15325000	usd
CY2021	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-19090000	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
CY2021	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-53952000	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
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-54241000	usd
CY2023	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	8520000	usd
CY2022	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	6453000	usd
CY2021	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	12212000	usd
CY2023	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	usd
CY2022	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	usd
CY2021	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	903000	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
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-11309000	usd
CY2023	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	45000000	usd
CY2022	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	135000000	usd
CY2021	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	117000000	usd
CY2023	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	65000000	usd
CY2022	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	160000000	usd
CY2021	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	72000000	usd
CY2023	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	19800000	usd
CY2022	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	14850000	usd
CY2021	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	9900000	usd
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	570000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1132000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1294000	usd
CY2023	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	3272000	usd
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2751000	usd
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2476000	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
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2023	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	0	usd
CY2022	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	202000	usd
CY2021	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	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
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	517000	usd
CY2023	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1119000	usd
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	303000	usd
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1939000	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
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	32752000	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
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-32798000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	10479000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	11709000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	44507000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	78988000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	10479000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	11709000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	15049000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	15171000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	11568000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-29000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-79000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	31000	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
CY2021	blbd	Increase Decrease Capital Expenditures Incurredbut Not Yet Paid IncreaseDecreaseCapitalExpendituresIncurredbutNotYetPaid	587000	usd
CY2023	blbd	Proceeds From Stock Options Exercised Cashless ProceedsFromStockOptionsExercisedCashless	0	usd
CY2022	blbd	Proceeds From Stock Options Exercised Cashless ProceedsFromStockOptionsExercisedCashless	0	usd
CY2021	blbd	Proceeds From Stock Options Exercised Cashless ProceedsFromStockOptionsExercisedCashless	2299000	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
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	62000	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
CY2021	blbd	Right Of Use Assets Removed Due To Non Renewal Of Finance Lease RightOfUseAssetsRemovedDueToNonRenewalOfFinanceLease	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
CY2021	blbd	Right Of Use Liabilities Removed Due To Non Renewal Of Finance Lease RightOfUseLiabilitiesRemovedDueToNonRenewalOfFinanceLease	0	usd
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-53230000	usd
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	-517000	usd
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1939000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5838000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-289000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	13603000	usd
CY2021Q4	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
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1382000	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
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
CY2023Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	39998000	usd
CY2023	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 the extent and duration of any COVID-19 outbreaks and 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.
CY2023	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 (loss), 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>
CY2023	blbd	Extended Product Warranty Period ExtendedProductWarrantyPeriod	P12M
CY2023	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.
CY2023Q3	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	1500000	usd
CY2022Q4	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	1400000	usd
CY2023	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1500000	usd
CY2022	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1500000	usd
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1100000	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
CY2021	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	6920000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6600000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6100000	usd
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	5200000	usd
CY2023Q3	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	12674000	usd
CY2022Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	12634000	usd
CY2023Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	100000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	100000	usd
CY2023Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	12574000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	12534000	usd
CY2022Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15970000	usd
CY2021Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	18550000	usd
CY2020Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	21374000	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
CY2021	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	-9744000	usd
CY2023Q3	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15434000	usd
CY2022Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	15970000	usd
CY2021Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	18550000	usd
CY2022Q4	us-gaap	Deferred Revenue DeferredRevenue	18795000	usd
CY2021Q4	us-gaap	Deferred Revenue DeferredRevenue	20144000	usd
CY2020Q4	us-gaap	Deferred Revenue DeferredRevenue	22588000	usd
CY2023	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	12013000	usd
CY2022	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	6847000	usd
CY2021	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	6192000	usd
CY2023	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	7685000	usd
CY2022	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	8196000	usd
CY2021	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	8636000	usd
CY2023Q3	us-gaap	Deferred Revenue DeferredRevenue	23123000	usd
CY2022Q4	us-gaap	Deferred Revenue DeferredRevenue	18795000	usd
CY2021Q4	us-gaap	Deferred Revenue DeferredRevenue	20144000	usd
CY2023Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	8100000	usd
CY2023Q3	blbd	Funds Payable Us Infrastructure Investment And Jobs Act FundsPayableUSInfrastructureInvestmentAndJobsAct	18500000	usd
CY2023Q3	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	4475000	usd
CY2022Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	3996000	usd
CY2023Q3	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	1771000	usd
CY2022Q4	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	1794000	usd
CY2023Q3	us-gaap	Self Insurance Reserve SelfInsuranceReserve	6246000	usd
CY2022Q4	us-gaap	Self Insurance Reserve SelfInsuranceReserve	5790000	usd
CY2023	blbd	Shippingand Handling Revenue1 ShippingandHandlingRevenue1	18500000	usd
CY2022	blbd	Shippingand Handling Revenue1 ShippingandHandlingRevenue1	16000000	usd
CY2021	blbd	Shippingand Handling Revenue1 ShippingandHandlingRevenue1	13400000	usd
CY2023	blbd	Shipping Handling And Transportation Costs1 ShippingHandlingAndTransportationCosts1	16600000	usd
CY2022	blbd	Shipping Handling And Transportation Costs1 ShippingHandlingAndTransportationCosts1	14300000	usd
CY2021	blbd	Shipping Handling And Transportation Costs1 ShippingHandlingAndTransportationCosts1	11700000	usd
CY2022Q4	us-gaap	Goodwill Gross GoodwillGross	18825000	usd
CY2022Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	usd
CY2022Q4	us-gaap	Goodwill Goodwill	18825000	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2023	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2023Q3	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	88116000	usd
CY2022Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	106070000	usd
CY2023Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	45875000	usd
CY2022Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	35398000	usd
CY2023Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	1295000	usd
CY2022Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	1509000	usd
CY2023Q3	us-gaap	Inventory Net InventoryNet	135286000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	142977000	usd
CY2023Q3	us-gaap	Excess Of Replacement Or Current Costs Over Stated Lifo Value ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue	8800000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	212126000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	203614000	usd
CY2023Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	121323000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	108493000	usd
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4298000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	5487000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	95101000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	100608000	usd
CY2023	us-gaap	Depreciation Depreciation	13300000	usd
CY2022	us-gaap	Depreciation Depreciation	10900000	usd
CY2021	us-gaap	Depreciation Depreciation	9800000	usd
CY2023Q3	us-gaap	Accumulated Capitalized Interest Costs AccumulatedCapitalizedInterestCosts	700000	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
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
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	40581000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	32964000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	7617000	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
CY2022Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	80397000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	32964000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	47433000	usd
CY2023	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	usd
CY2022	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2000000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2000000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2200000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1869000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1869000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1870000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5608000	usd
CY2018Q3	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	2000000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-10862000	usd
CY2021Q4	us-gaap	Sale Of Stock Consideration Received On Transaction SaleOfStockConsiderationReceivedOnTransaction	75000000	usd
CY2023Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	19800000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	19800000	usd
CY2023Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	110544000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	130390000	usd
CY2023	us-gaap	Interest Expense Debt InterestExpenseDebt	18000000	usd
CY2022	us-gaap	Interest Expense Debt InterestExpenseDebt	14700000	usd
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	9700000	usd
CY2023Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	19800000	usd
CY2023Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	112000000	usd
CY2023Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	131800000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	645000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-380000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-348000	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
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	82000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	888000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-380000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-266000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	6230000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-604000	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
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-321000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	8065000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-11071000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-925000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8953000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-11451000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1191000	usd
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.347
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.216
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.602
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
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.602
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
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-415000	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
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-552000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-240000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-395000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	635000	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
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	135000	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
CY2021	blbd	Effective Income Tax Rate Reconciliation Nondeductible Expense Permanent Differences Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpensePermanentDifferencesAmount	20000	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
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	0	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	330000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	285000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	450000	usd
CY2023	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-3000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	212000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-476000	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
CY2021	blbd	Effective Income Tax Rate Reconciliation Equityin Earningsof Equity Method Investments Amount EffectiveIncomeTaxRateReconciliationEquityinEarningsofEquityMethodInvestmentsAmount	28000	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
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	-116000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8953000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-11451000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1191000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	110000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	370000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	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
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	370000	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
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	usd
CY2023Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	110000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	370000	usd
CY2023Q3	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	100000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	10880000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	9899000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	11167000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	11539000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	866000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	461000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Other Finite Lived Assets DeferredTaxLiabilitiesOtherFiniteLivedAssets	0	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other Finite Lived Assets DeferredTaxLiabilitiesOtherFiniteLivedAssets	127000	usd
CY2023Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	22913000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	22026000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	1168000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	7928000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	5586000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	5335000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	2839000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	5139000	usd
CY2023Q3	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	5235000	usd
CY2022Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	5098000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	743000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	3972000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3052000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	0	usd
CY2023Q3	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	3096000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	3046000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	6685000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	7918000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	28404000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	38436000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	5822000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	5503000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	22582000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	32933000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	331000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	10907000	usd
CY2023Q3	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	300000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	100000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P0Y3M18D
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	2188000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	1399000	usd
CY2023	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	702000	usd
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1157000	usd
CY2023	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	60000	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	171000	usd
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1993000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	995000	usd
CY2023	us-gaap	Lease Cost LeaseCost	4943000	usd
CY2022	us-gaap	Lease Cost LeaseCost	3722000	usd
CY2023Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4298000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	5487000	usd
CY2023Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1034000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1736000	usd
CY2023Q3	blbd	Lease Right Of Use Asset LeaseRightOfUseAsset	5332000	usd
CY2022Q4	blbd	Lease Right Of Use Asset LeaseRightOfUseAsset	7223000	usd
CY2023Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1593000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2150000	usd
CY2023Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	583000	usd
CY2022Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	566000	usd
CY2023Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	3608000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	4578000	usd
CY2023Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	987000	usd
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	1574000	usd
CY2023Q3	blbd	Lease Liability LeaseLiability	6771000	usd
CY2022Q4	blbd	Lease Liability LeaseLiability	8868000	usd
CY2023Q3	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	2500000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	1800000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1878000	usd
CY2023Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	631000	usd
CY2023Q3	blbd	Lease Liability Payments Due Next Twelve Months LeaseLiabilityPaymentsDueNextTwelveMonths	2509000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1640000	usd
CY2023Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	994000	usd
CY2023Q3	blbd	Lease Liability Payments Due Year Two LeaseLiabilityPaymentsDueYearTwo	2634000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1284000	usd
CY2023Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	0	usd
CY2023Q3	blbd	Lease Liability Payments Due Year Three LeaseLiabilityPaymentsDueYearThree	1284000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	776000	usd
CY2023Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	0	usd
CY2023Q3	blbd	Lease Liability Payments Due Year Four LeaseLiabilityPaymentsDueYearFour	776000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	208000	usd
CY2023Q3	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	usd
CY2023Q3	blbd	Lease Liability Payments Due Year Five LeaseLiabilityPaymentsDueYearFive	208000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	88000	usd
CY2023Q3	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	usd
CY2023Q3	blbd	Lease Liability Payments Due After Year Five LeaseLiabilityPaymentsDueAfterYearFive	88000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	5874000	usd
CY2023Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	1625000	usd
CY2023Q3	blbd	Lease Liability Payments Due LeaseLiabilityPaymentsDue	7499000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	673000	usd
CY2023Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	55000	usd
CY2023Q3	blbd	Lease Liability Undiscounted Excess Amount LeaseLiabilityUndiscountedExcessAmount	728000	usd
CY2023Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	5201000	usd
CY2023Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	1570000	usd
CY2023Q3	blbd	Lease Liability LeaseLiability	6771000	usd
CY2023Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P3Y6M
CY2023Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P1Y6M
CY2023Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.050
CY2023Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.033
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	2688000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	1572000	usd
CY2023	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	60000	usd
CY2022	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	171000	usd
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	570000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1132000	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
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.48
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.01
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	5200000	shares
CY2023Q3	blbd	Share Based Compensation Arrangement By Share Based Payment Award Options Exercise Percentage Of Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisePercentageOfFairValue	1
CY2023Q3	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	109187000	usd
CY2023Q3	us-gaap	Purchase Obligation PurchaseObligation	109187000	usd
CY2023	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2023	us-gaap	Gross Profit GrossProfit	138850000	usd
CY2022	us-gaap	Gross Profit GrossProfit	36546000	usd
CY2021	us-gaap	Gross Profit GrossProfit	72141000	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
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-1978000	usd
CY2023	us-gaap	Revenues Revenues	1132793000	usd
CY2022	us-gaap	Revenues Revenues	800637000	usd
CY2021	us-gaap	Revenues Revenues	683995000	usd
CY2023Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	8733000	usd
CY2023Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	8789000	usd
CY2023Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	8774000	usd
CY2023Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	8717000	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
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	683995000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	23812000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-45759000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-289000	usd
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
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	27139054	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.48
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.01
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
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	27139054	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
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	27139054	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	516587	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.07
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	221946	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	13.19
CY2023	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	60769	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	18.41
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	17493	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	18.86
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	19918	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	16.27
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
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	387796	shares
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	17.81
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
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	3200000	usd
CY2023Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	1400000	usd
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	100000	usd
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	1100000	usd
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	800000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	900000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1900000	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
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	500000	usd
CY2023Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	900000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y4M24D
CY2023Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	8636000	usd
CY2023Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	41953000	usd
CY2023Q3	blbd	Defined Benefit Plan Expected Future Benefit Payments DefinedBenefitPlanExpectedFutureBenefitPayments	85602000	usd
CY2023	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.50
CY2023	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.06
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
CY2021	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	500000	usd
CY2023	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	15300000	usd
CY2022	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	13600000	usd
CY2021	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	13800000	usd
CY2023Q3	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	8300000	usd
CY2022Q4	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	0	usd
CY2009Q4	blbd	Equity Method Investment Numberof Manufacturers EquityMethodInvestmentNumberofManufacturers	2	manufacturer
CY2023	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2023	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false

Files In Submission

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$BLBD
Blue Bird Corp Stock $blbd

2023 Q4 Form 10-K Financial Statement

#000158952623000124 Filed on December 11, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BLBD Blue Bird Corp Stock $blbd

2023 Q4 Form 10-K Financial Statement

#000158952623000124 Filed on December 11, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$BLBD
Blue Bird Corp Stock $blbd