$KNX
Knight-Swift Transportation Holdings Inc. Stock $knx

$knx Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000149269123000019 Filed on February 23, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$1.637B	$1.744B	$7.429B
YoY Change	-10.4%	-4.03%	23.85%
Cost Of Revenue	$567.8M	$630.4M	$2.763B
YoY Change	-15.61%	-2.89%	26.72%
Gross Profit	$1.069B	$1.113B	$4.665B
YoY Change	-7.37%	-4.66%	22.21%
Gross Profit Margin	65.31%	63.85%	62.8%
Selling, General & Admin	$694.1M	$688.9M	$2.710B
YoY Change	6.22%	9.45%	27.56%
% of Gross Profit	64.93%	61.88%	58.1%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$172.1M	$168.3M	$659.8M
YoY Change	6.79%	7.64%	14.18%
% of Gross Profit	16.1%	15.12%	14.14%
Operating Expenses	$921.7M	$910.7M	$3.572B
YoY Change	4.14%	29.96%	28.74%
Operating Profit	$147.5M	$202.5M	$1.093B
YoY Change	-50.53%	-56.63%	13.19%
Interest Expense	-$18.04M	-$17.02M	-$45.36M
YoY Change	-370.09%	150.1%	-314.59%
% of Operating Profit	-12.23%	-8.4%	-4.15%
Other Income/Expense, Net	$9.703M	$5.535M	-$25.96M
YoY Change	-147.05%	-168.23%	-390.42%
Pretax Income	$136.4M	$191.0M	$1.021B
YoY Change	-50.82%	-41.63%	4.71%
Income Tax	$32.74M	$42.45M	$249.4M
% Of Pretax Income	23.99%	22.22%	24.44%
Net Earnings	$104.3M	$148.7M	$771.3M
YoY Change	-49.94%	-41.6%	3.76%
Net Earnings / Revenue	6.37%	8.53%	10.38%
Basic Earnings Per Share	$0.65		$4.75
Diluted Earnings Per Share	$0.64	$919.7K	$4.726M
COMMON SHARES
Basic Shares Outstanding	160.9M shares	160.7M shares	162.3M shares
Diluted Shares Outstanding	161.9M shares		163.2M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$191.2M	$196.8M	$196.8M
YoY Change	-21.25%	-24.61%	-24.61%
Cash & Equivalents	$191.2M	$196.8M	$196.8M
Short-Term Investments
Other Short-Term Assets	$420.8M	$395.5M	$395.5M
YoY Change	1454.67%	1402.9%	64.1%
Inventory
Prepaid Expenses	$105.4M	$108.1M
Receivables	$800.4M	$842.3M	$842.3M
Other Receivables	$30.22M	$58.97M	$58.97M
Total Short-Term Assets	$1.443B	$1.494B	$1.494B
YoY Change	-1.61%	5.61%	5.61%
LONG-TERM ASSETS
Property, Plant & Equipment	$4.078B	$4.027B	$4.027B
YoY Change	13.92%	13.28%	8.76%
Goodwill	$3.519B	$3.519B
YoY Change	0.02%	0.12%
Intangibles	$1.761B	$1.777B
YoY Change	-2.99%	-2.98%
Long-Term Investments
YoY Change
Other Assets	$142.4M	$134.8M	$134.8M
YoY Change	-18.62%	-29.85%	-29.85%
Total Long-Term Assets	$9.500B	$9.458B	$9.458B
YoY Change	2.93%	2.35%	2.35%
TOTAL ASSETS
Total Short-Term Assets	$1.443B	$1.494B	$1.494B
Total Long-Term Assets	$9.500B	$9.458B	$9.458B
Total Assets	$10.94B	$10.95B	$10.95B
YoY Change	2.31%	2.78%	2.78%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$214.6M	$220.8M	$220.8M
YoY Change	-13.74%	-1.78%	-1.78%
Accrued Expenses	$275.8M	$289.9M	$289.9M
YoY Change	46.71%	125.52%	-23.91%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$72.88M	$71.47M	$71.47M
YoY Change	-68.88%	-72.77%	-72.77%
Total Short-Term Liabilities	$905.8M	$894.0M	$894.0M
YoY Change	-22.32%	-16.82%	-16.82%
LONG-TERM LIABILITIES
Long-Term Debt	$1.735B	$1.831B	$1.831B
YoY Change	-0.86%	-0.09%	-0.09%
Other Long-Term Liabilities	$359.6M	$363.9M	$363.9M
YoY Change	3135.94%	2976.42%	10.21%
Total Long-Term Liabilities	$2.095B	$2.194B	$2.194B
YoY Change	18753.69%	18453.31%	1.49%
TOTAL LIABILITIES
Total Short-Term Liabilities	$905.8M	$894.0M	$894.0M
Total Long-Term Liabilities	$2.095B	$2.194B	$2.194B
Total Liabilities	$3.918B	$4.007B	$4.007B
YoY Change	-4.78%	-2.56%	-2.81%
SHAREHOLDERS EQUITY
Retained Earnings	$2.623B	$2.554B
YoY Change	18.75%	17.07%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$7.025B	$6.945B	$6.945B
YoY Change
Total Liabilities & Shareholders Equity	$10.94B	$10.95B	$10.95B
YoY Change	2.31%	2.78%	2.78%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$104.3M	$148.7M	$771.3M
YoY Change	-49.94%	-41.6%	3.76%
Depreciation, Depletion And Amortization	$172.1M	$168.3M	$659.8M
YoY Change	6.79%	7.64%	14.18%
Cash From Operating Activities	$345.2M	$336.7M	$1.436B
YoY Change	-24.45%	-9.65%	20.64%
INVESTING ACTIVITIES
Capital Expenditures	$260.3M	$304.3M	$800.6M
YoY Change	-257.81%	-309.05%	-249.89%
Acquisitions	$275.0K		$31.29M
YoY Change	-78.7%		-97.91%
Other Investing Activities	-$1.229M	$16.77M	-$4.233M
YoY Change	-164.01%	-113.7%	-183.66%
Cash From Investing Activities	-$197.3M	-$287.6M	-$646.2M
YoY Change	79.06%	7.31%	-64.43%
FINANCING ACTIVITIES
Cash Dividend Paid	$22.98M		$78.30M
YoY Change	14.13%		23.25%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$134.6M	-5.518M	-$754.3M
YoY Change	-58.36%	-94.13%	-196.79%
NET CHANGE
Cash From Operating Activities	$345.2M	336.7M	$1.436B
Cash From Investing Activities	-$197.3M	-287.6M	-$646.2M
Cash From Financing Activities	-$134.6M	-5.518M	-$754.3M
Net Change In Cash	$13.26M	43.58M	$35.32M
YoY Change	-43.38%	308.45%	-76.88%
FREE CASH FLOW
Cash From Operating Activities	$345.2M	$336.7M	$1.436B
Capital Expenditures	$260.3M	$304.3M	$800.6M
Free Cash Flow	$84.82M	$32.33M	$635.3M
YoY Change	-86.36%	-93.76%	-63.16%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0001492691
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#LongTermDebtAndCapitalLeaseObligationsCurrent
CY2022	us-gaap	Operating Lease Income Comprehensive Income Extensible List OperatingLeaseIncomeComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#Revenues
CY2021	us-gaap	Operating Lease Income Comprehensive Income Extensible List OperatingLeaseIncomeComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#Revenues
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	001-35007
CY2022	dei	Entity Registrant Name EntityRegistrantName	Knight-Swift Transportation Holdings Inc.
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	20-5589597
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	2002 West Wahalla Lane
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Phoenix
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	AZ
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	85027
CY2022	dei	City Area Code CityAreaCode	602
CY2022	dei	Local Phone Number LocalPhoneNumber	269-2000
CY2022	dei	Security12b Title Security12bTitle	Common Stock $0.01 Par Value
CY2022	dei	Trading Symbol TradingSymbol	KNX
CY2022	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	knx	Correction Of Error To Previously Issued Financial Statements CorrectionOfErrorToPreviouslyIssuedFinancialStatements	false
CY2022	knx	Required Recovery Analysis Of Incentive Based Compensation RequiredRecoveryAnalysisOfIncentiveBasedCompensation	false
CY2022	dei	Entity Shell Company EntityShellCompany	false
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CY2022	dei	Auditor Firm AuditorFirmId	248
CY2022	dei	Auditor Name AuditorName	GRANT THORNTON LLP
CY2022	dei	Auditor Location AuditorLocation	Phoenix, Arizona
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CY2021	us-gaap	Direct Operating Maintenance Supplies Costs DirectOperatingMaintenanceSuppliesCosts	313505000	usd
CY2020	us-gaap	Direct Operating Maintenance Supplies Costs DirectOperatingMaintenanceSuppliesCosts	275290000	usd
CY2022	us-gaap	Operating Insurance And Claims Costs Production OperatingInsuranceAndClaimsCostsProduction	455918000	usd
CY2021	us-gaap	Operating Insurance And Claims Costs Production OperatingInsuranceAndClaimsCostsProduction	275378000	usd
CY2020	us-gaap	Operating Insurance And Claims Costs Production OperatingInsuranceAndClaimsCostsProduction	192840000	usd
CY2022	us-gaap	Direct Taxes And Licenses Costs DirectTaxesAndLicensesCosts	111197000	usd
CY2021	us-gaap	Direct Taxes And Licenses Costs DirectTaxesAndLicensesCosts	98784000	usd
CY2020	us-gaap	Direct Taxes And Licenses Costs DirectTaxesAndLicensesCosts	87422000	usd
CY2022	us-gaap	Communications Information Technology And Occupancy CommunicationsInformationTechnologyAndOccupancy	23656000	usd
CY2021	us-gaap	Communications Information Technology And Occupancy CommunicationsInformationTechnologyAndOccupancy	22486000	usd
CY2020	us-gaap	Communications Information Technology And Occupancy CommunicationsInformationTechnologyAndOccupancy	19596000	usd
CY2022	us-gaap	Depreciation Depreciation	594981000	usd
CY2021	us-gaap	Depreciation Depreciation	522596000	usd
CY2020	us-gaap	Depreciation Depreciation	460775000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	64843000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	55299000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	45895000	usd
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	56856000	usd
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	55161000	usd
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	86640000	usd
CY2022	knx	Purchased Transportation PurchasedTransportation	1444937000	usd
CY2021	knx	Purchased Transportation PurchasedTransportation	1320888000	usd
CY2020	knx	Purchased Transportation PurchasedTransportation	936649000	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	810000	usd
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	299000	usd
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	5335000	usd
CY2022	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	91148000	usd
CY2021	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	49898000	usd
CY2020	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	99488000	usd
CY2022	us-gaap	Costs And Expenses CostsAndExpenses	6336754000	usd
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	5032322000	usd
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	4109425000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	1091828000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	965697000	usd
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	564438000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	5439000	usd
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	1173000	usd
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	1928000	usd
CY2022	us-gaap	Interest Expense InterestExpense	50803000	usd
CY2021	us-gaap	Interest Expense InterestExpense	21140000	usd
CY2020	us-gaap	Interest Expense InterestExpense	17309000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-25958000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	28905000	usd
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	11254000	usd
CY2022	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-71322000	usd
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	8938000	usd
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-4127000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1020506000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	974635000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	560311000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	249388000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	230887000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	149676000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	771118000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	743748000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	410635000	usd
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-207000	usd
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	360000	usd
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	633000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	771325000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	743388000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	410002000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1873000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-563000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	0	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	769452000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	742825000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	410002000	usd
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.75
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.48
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.42
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.73
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.45
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.40
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.48
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.38
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.32
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	162260000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	165860000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	169711000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	163211000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	167060000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	170549000	shares
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5668303000	usd
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	10013000	usd
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	515000	usd
CY2020	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	2220000	usd
CY2020	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	179585000	usd
CY2020	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	4510000	usd
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	19639000	usd
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.32
CY2020	us-gaap	Dividends Dividends	54661000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	410635000	usd
CY2020	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	529000	usd
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5872040000	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	5924000	usd
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	575000	usd
CY2021	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	10000000	usd
CY2021	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	2783000	usd
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	57175000	usd
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	8257000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	33495000	usd
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.38
CY2021	us-gaap	Dividends Dividends	63587000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	743748000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-563000	usd
CY2021	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	10281000	usd
CY2021	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	64000	usd
CY2021	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	5750000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6543450000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	2511000	usd
CY2022	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	873000	usd
CY2022	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	4048000	usd
CY2022	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	299941000	usd
CY2022	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	20623000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	33928000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.48
CY2022	us-gaap	Dividends Dividends	78396000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	771118000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1873000	usd
CY2022	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	186000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6955281000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	771118000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	743748000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	410635000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	659824000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	577895000	usd
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	506670000	usd
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	92891000	usd
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	74799000	usd
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	9706000	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	810000	usd
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	299000	usd
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	5335000	usd
CY2022	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-30852000	usd
CY2021	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-39929000	usd
CY2020	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-46214000	usd
CY2022	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	41943000	usd
CY2021	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	45192000	usd
CY2020	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	80891000	usd
CY2022	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-52274000	usd
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	3931000	usd
CY2020	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	3737000	usd
CY2022	us-gaap	Increase Decrease In Debt Securities Trading IncreaseDecreaseInDebtSecuritiesTrading	0	usd
CY2021	us-gaap	Increase Decrease In Debt Securities Trading IncreaseDecreaseInDebtSecuritiesTrading	12631000	usd
CY2020	us-gaap	Increase Decrease In Debt Securities Trading IncreaseDecreaseInDebtSecuritiesTrading	0	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-46632000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-44841000	usd
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-47419000	usd
CY2022	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-58708000	usd
CY2021	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	214573000	usd
CY2020	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	75521000	usd
CY2022	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	58065000	usd
CY2021	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-2528000	usd
CY2020	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-14123000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-24769000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	73371000	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	7500000	usd
CY2022	knx	Increase Decreasein Accrued Liabilitiesand Other Liabilities IncreaseDecreaseinAccruedLiabilitiesandOtherLiabilities	11151000	usd
CY2021	knx	Increase Decreasein Accrued Liabilitiesand Other Liabilities IncreaseDecreaseinAccruedLiabilitiesandOtherLiabilities	40872000	usd
CY2020	knx	Increase Decreasein Accrued Liabilitiesand Other Liabilities IncreaseDecreaseinAccruedLiabilitiesandOtherLiabilities	-31210000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-42893000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-48171000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-83675000	usd
CY2022	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-18841000	usd
CY2021	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-24417000	usd
CY2020	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	4707000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1435853000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1190153000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	919645000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	9706000	usd
CY2021	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	10624000	usd
CY2020	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	13675000	usd
CY2022	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	11145000	usd
CY2021	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	7706000	usd
CY2020	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	16936000	usd
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	183421000	usd
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	252080000	usd
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	133230000	usd
CY2022	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	800563000	usd
CY2021	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	534096000	usd
CY2020	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	521067000	usd
CY2022	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	545000	usd
CY2021	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	1367000	usd
CY2020	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	483000	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	31291000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1496208000	usd
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	46811000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	35000000	usd
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-4233000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	5060000	usd
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	42320000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-646184000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1816733000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-480712000	usd
CY2022	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	274833000	usd
CY2021	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	409889000	usd
CY2020	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	148910000	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1200000000	usd
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	usd
CY2022	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-217000000	usd
CY2021	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	50000000	usd
CY2020	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-69000000	usd
CY2022	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	140000000	usd
CY2021	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	80000000	usd
CY2020	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	61000000	usd
CY2022	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	0	usd
CY2021	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	15000000	usd
CY2020	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	52000000	usd
CY2022	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	7432000	usd
CY2021	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	9282000	usd
CY2020	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	12748000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	299941000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	57175000	usd
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	179585000	usd
CY2022	us-gaap	Payments Of Dividends PaymentsOfDividends	78304000	usd
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	63535000	usd
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	54620000	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-31701000	usd
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-14357000	usd
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-13517000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-754347000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	779326000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-443884000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	35322000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	152746000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-4951000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	350023000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	197277000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	202228000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	385345000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	350023000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	197277000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	48905000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	18949000	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	17396000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	289159000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	167092000	usd
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	80006000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	34909000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	10489000	usd
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	651000	usd
CY2022	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	2164000	usd
CY2021	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	0	usd
CY2020	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed1 NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1	0	usd
CY2022	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	1717000	usd
CY2021	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	6250000	usd
CY2020	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	16200000	usd
CY2022	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	usd
CY2021	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	10000000	usd
CY2020	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	usd
CY2022	knx	Conversion Of Note Receivable To Equity Investment ConversionOfNoteReceivableToEquityInvestment	0	usd
CY2021	knx	Conversion Of Note Receivable To Equity Investment ConversionOfNoteReceivableToEquityInvestment	37631000	usd
CY2020	knx	Conversion Of Note Receivable To Equity Investment ConversionOfNoteReceivableToEquityInvestment	0	usd
CY2022	knx	Right Of Use Asset Forfeited Obtained In Exchange For Operating Lease Liability RightOfUseAssetForfeitedObtainedInExchangeForOperatingLeaseLiability	86910000	usd
CY2021	knx	Right Of Use Asset Forfeited Obtained In Exchange For Operating Lease Liability RightOfUseAssetForfeitedObtainedInExchangeForOperatingLeaseLiability	22771000	usd
CY2020	knx	Right Of Use Asset Forfeited Obtained In Exchange For Operating Lease Liability RightOfUseAssetForfeitedObtainedInExchangeForOperatingLeaseLiability	12406000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	152509000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	181234000	usd
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	137097000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	196770000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	261001000	usd
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	156699000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	185792000	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	87241000	usd
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	39328000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	2783000	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1781000	usd
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1250000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	385345000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	350023000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	197277000	usd
CY2022Q4	knx	Numberof Tractors In Fleet NumberofTractorsInFleet	18110	vehicle
CY2022Q4	knx	Number Of Tractors Driven By Company Drivers NumberOfTractorsDrivenByCompanyDrivers	16228	vehicle
CY2022Q4	knx	Number Of Owner Operator Tractors NumberOfOwnerOperatorTractors	1882	vehicle
CY2022Q4	knx	Number Of Trailers In Fleet NumberOfTrailersInFleet	74779	vehicle
CY2022Q4	knx	Number Of Ltl Tractors NumberOfLTLTractors	3176	vehicle
CY2022Q4	knx	Number Of Ltl Trailers NumberOfLTLTrailers	8431	vehicle
CY2022Q4	knx	Number Of Intermodal Tractors NumberOfIntermodalTractors	613	vehicle
CY2022Q4	knx	Number Of Intermodal Containers NumberOfIntermodalContainers	11786	vehicle
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	segment
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:3pt;text-align:justify"><span style="color:#00467e;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates —</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the consolidated financial statements, in accordance with GAAP, requires management to make estimates and assumptions about future events that affect the amounts reported in the Company's consolidated financial statements and accompanying notes. On an ongoing basis, management evaluates and periodically adjusts its estimates and assumptions, based on historical experience, the impact of the current economic environment, and other key factors. Volatile energy markets, as well as changes in consumer spending have increased the inherent uncertainty in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Significant items subject to such estimates and assumptions include: </span></div><div style="margin-bottom:3pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">carrying amount of property and equipment; </span></div><div style="margin-bottom:3pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">carrying amount of goodwill and intangible assets;</span></div><div style="margin-bottom:3pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">leases;</span></div><div style="margin-bottom:3pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">estimates of claims accruals;</span></div><div style="margin-bottom:3pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">contingent obligations;</span></div><div style="margin-bottom:3pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">calculation of projected pension benefit obligation;</span></div><div style="margin-bottom:3pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">calculation of stock-based compensation;</span></div><div style="margin-bottom:3pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">valuation allowance for deferred income tax assets;</span></div><div style="margin-bottom:3pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">valuation allowances for receivables; and</span></div><div style="margin-bottom:12pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">valuation of financial instruments.</span></div>
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	segment
CY2022	knx	Percentage Of Income Tax Positions Likely To Be Realized PercentageOfIncomeTaxPositionsLikelyToBeRealized	0.50
CY2021	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	6387329000	usd
CY2020	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	5374934000	usd
CY2021	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	763393000	usd
CY2020	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	437835000	usd
CY2021	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	4.57
CY2020	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	2.57
CY2022Q4	knx	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Finite And Definite Lived Intangibles BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFiniteAndDefiniteLivedIntangibles	168000000	usd
CY2022Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	7175000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	45000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	7130000	usd
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	5866000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	7000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	5859000	usd
CY2022	knx	Short Term Investment Contractual Maturity ShortTermInvestmentContractualMaturity	P1Y
CY2022Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	14	securities
CY2021Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	11	securities
CY2021	knx	Swft Durationof Securitiesin Unrealized Loss Position SWFT_DurationofSecuritiesinUnrealizedLossPosition	P12M
CY2022	knx	Swft Durationof Securitiesin Unrealized Loss Position SWFT_DurationofSecuritiesinUnrealizedLossPosition	P12M
CY2021	us-gaap	Other Than Temporary Impairment Losses Investments Heldtomaturity Securities OtherThanTemporaryImpairmentLossesInvestmentsHeldtomaturitySecurities	0	usd
CY2022	us-gaap	Other Than Temporary Impairment Losses Investments Heldtomaturity Securities OtherThanTemporaryImpairmentLossesInvestmentsHeldtomaturitySecurities	0	usd
CY2020	us-gaap	Other Than Temporary Impairment Losses Investments Heldtomaturity Securities OtherThanTemporaryImpairmentLossesInvestmentsHeldtomaturitySecurities	0	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	1032000	usd
CY2021Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	54467000	usd
CY2022Q4	us-gaap	Investments Investments	104549000	usd
CY2021Q4	us-gaap	Investments Investments	130236000	usd
CY2022Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	865274000	usd
CY2021Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	932999000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	22980000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	21663000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	842294000	usd
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	911336000	usd
CY2022Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	16666000	usd
CY2021Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	17104000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	5015000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	496000	usd
CY2022Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	11651000	usd
CY2021Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	16608000	usd
CY2022Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	8122000	usd
CY2021Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	1848000	usd
CY2022Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	3529000	usd
CY2021Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	14760000	usd
CY2021Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	10000000	usd
CY2021Q4	us-gaap	Investment Interest Rate InvestmentInterestRate	0.120
CY2022	knx	Period Assetsare Expected To Be Sold PeriodAssetsareExpectedToBeSold	P12M
CY2021Q4	us-gaap	Goodwill Gross GoodwillGross	3515135000	usd
CY2020Q4	us-gaap	Goodwill Gross GoodwillGross	2922964000	usd
CY2019Q4	us-gaap	Goodwill Gross GoodwillGross	2918992000	usd
CY2022	us-gaap	Adjustment For Amortization AdjustmentForAmortization	0	usd
CY2021	us-gaap	Adjustment For Amortization AdjustmentForAmortization	-9000	usd
CY2020	us-gaap	Adjustment For Amortization AdjustmentForAmortization	-11000	usd
CY2022	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	4204000	usd
CY2021	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	592180000	usd
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	3983000	usd
CY2022Q4	us-gaap	Goodwill Gross GoodwillGross	3519339000	usd
CY2021Q4	us-gaap	Goodwill Gross GoodwillGross	3515135000	usd
CY2020Q4	us-gaap	Goodwill Gross GoodwillGross	2922964000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	3519339000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	3515135000	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1237993000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1227630000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	265982000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	201139000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	972011000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1026491000	usd
CY2022Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	804558000	usd
CY2021Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	804558000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1776569000	usd
CY2021Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1831049000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	64843000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	55299000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	45895000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	64700000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	64700000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	64600000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	63200000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	62300000	usd
CY2022Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	123719000	usd
CY2022Q4	us-gaap	Accrued Insurance Current And Noncurrent AccruedInsuranceCurrentAndNoncurrent	513660000	usd
CY2021Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	146326000	usd
CY2022Q4	knx	Accrued Purchased Transportation AccruedPurchasedTransportation	47662000	usd
CY2021Q4	knx	Accrued Purchased Transportation AccruedPurchasedTransportation	70758000	usd
CY2022Q4	knx	Accrued Payrolland Purchased Transportation AccruedPayrollandPurchasedTransportation	171381000	usd
CY2021Q4	knx	Accrued Payrolland Purchased Transportation AccruedPayrollandPurchasedTransportation	217084000	usd
CY2022	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.030
CY2022	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount	2000	usd
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	29600000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	16200000	usd
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	13600000	usd
CY2022Q4	us-gaap	Postemployment Benefits Liability Current And Noncurrent PostemploymentBenefitsLiabilityCurrentAndNoncurrent	21300000	usd
CY2021Q4	us-gaap	Postemployment Benefits Liability Current And Noncurrent PostemploymentBenefitsLiabilityCurrentAndNoncurrent	14500000	usd
CY2022	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	<div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Claims accruals were comprised of the following: </span></div><div style="margin-bottom:1pt;margin-top:6pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.707%"><tr><td style="width:1.0%"/><td style="width:70.894%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:12.536%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.533%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:12.537%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="border-left:1pt solid #00467e;border-top:1pt solid #00467e;padding:0 1pt"/><td colspan="9" style="border-right:1pt solid #00467e;border-top:1pt solid #00467e;padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:100%">December 31,</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #00467e;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:100%">2022</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #000000;border-right:1pt solid #00467e;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:100%">2021</span></td></tr><tr><td colspan="3" style="border-left:1pt solid #00467e;padding:0 1pt"/><td colspan="9" style="border-right:1pt solid #00467e;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:7pt;font-weight:700;line-height:100%">(In thousands)</span></td></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-left:1pt solid #00467e;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Auto reserves</span></td><td style="background-color:#e0e0e0;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#e0e0e0;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">266,734 </span></td><td style="background-color:#e0e0e0;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"/><td style="background-color:#e0e0e0;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#e0e0e0;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">263,091 </span></td><td style="background-color:#e0e0e0;border-right:1pt solid #00467e;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="background-color:#ffffff;border-left:1pt solid #00467e;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Workers’ compensation reserves</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">76,154 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">90,481 </span></td><td style="background-color:#ffffff;border-right:1pt solid #00467e;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-left:1pt solid #00467e;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Third-party carrier claims reserves</span></td><td colspan="2" style="background-color:#e0e0e0;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">134,116 </span></td><td style="background-color:#e0e0e0;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"/><td colspan="2" style="background-color:#e0e0e0;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">31,524 </span></td><td style="background-color:#e0e0e0;border-right:1pt solid #00467e;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="background-color:#ffffff;border-left:1pt solid #00467e;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Independent contractor claims reserves</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">6,137 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">6,285 </span></td><td style="background-color:#ffffff;border-right:1pt solid #00467e;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-left:1pt solid #00467e;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Cargo damage reserves</span></td><td colspan="2" style="background-color:#e0e0e0;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">7,231 </span></td><td style="background-color:#e0e0e0;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"/><td colspan="2" style="background-color:#e0e0e0;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">5,409 </span></td><td style="background-color:#e0e0e0;border-right:1pt solid #00467e;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="background-color:#ffffff;border-left:1pt solid #00467e;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Employee medical and other reserves</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">23,288 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">20,531 </span></td><td style="background-color:#ffffff;border-right:1pt solid #00467e;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-left:1pt solid #00467e;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Claims accruals</span></td><td colspan="2" style="background-color:#e0e0e0;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">513,660 </span></td><td style="background-color:#e0e0e0;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"/><td colspan="2" style="background-color:#e0e0e0;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">417,321 </span></td><td style="background-color:#e0e0e0;border-right:1pt solid #00467e;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="background-color:#ffffff;border-left:1pt solid #00467e;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Less: current portion of claims accruals</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(311,822)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(206,607)</span></td><td style="background-color:#ffffff;border-right:1pt solid #00467e;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="background-color:#e0e0e0;border-left:1pt solid #00467e;padding:2px 1pt 2px 12.25pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Claims accruals, less current portion</span></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">201,838 </span></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#e0e0e0;padding:0 1pt"/><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#e0e0e0;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:100%">210,714 </span></td><td style="background-color:#e0e0e0;border-right:1pt solid #00467e;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:1pt solid #00467e;border-left:1pt solid #00467e;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #00467e;border-top:3pt double #000000;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #00467e;padding:0 1pt"/><td colspan="3" style="border-bottom:1pt solid #00467e;border-right:1pt solid #00467e;border-top:3pt double #000000;padding:0 1pt"/></tr></table></div>
CY2021Q4	us-gaap	Accrued Insurance Current And Noncurrent AccruedInsuranceCurrentAndNoncurrent	417321000	usd
CY2022Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	311822000	usd
CY2021Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	206607000	usd
CY2022Q4	us-gaap	Accrued Insurance Noncurrent AccruedInsuranceNoncurrent	201838000	usd
CY2021Q4	us-gaap	Accrued Insurance Noncurrent AccruedInsuranceNoncurrent	210714000	usd
CY2022Q4	knx	Self Insurance Retention SelfInsuranceRetention	10000000	usd
CY2022	knx	Cargo Insurancepertruckortrailer CargoInsurancepertruckortrailer	2000000	usd
CY2022	knx	Cargoinsuranceperoccurrence Cargoinsuranceperoccurrence	15000000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	174277000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	140258000	usd
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	80060000	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	1423000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	39687000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	42319000	usd
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	19153000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	4277000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	8382000	usd
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	4248000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	218241000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	190959000	usd
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	103461000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	25850000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	48874000	usd
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	29640000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1432000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-10369000	usd
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	7292000	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	3865000	usd
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	9283000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	31147000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	39928000	usd
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	46215000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	249388000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	230887000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	149676000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	214306000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	204673000	usd
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	117665000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Contingencies State And Local IncomeTaxReconciliationTaxContingenciesStateAndLocal	32786000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Contingencies State And Local IncomeTaxReconciliationTaxContingenciesStateAndLocal	23063000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Contingencies State And Local IncomeTaxReconciliationTaxContingenciesStateAndLocal	22423000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Contingencies Other IncomeTaxReconciliationTaxContingenciesOther	2296000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Contingencies Other IncomeTaxReconciliationTaxContingenciesOther	3151000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Contingencies Other IncomeTaxReconciliationTaxContingenciesOther	9588000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	249388000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	230887000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	149676000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	85573000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	79496000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	11815000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	4112000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	11497000	usd
CY2022Q4	knx	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Operating Lease Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOperatingLeaseLiabilities	45089000	usd
CY2021Q4	knx	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Operating Lease Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOperatingLeaseLiabilities	34260000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	39160000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	34284000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	185749000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	159537000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	185749000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	159537000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	677010000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	635877000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	17081000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	15241000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	342559000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	338191000	usd
CY2022Q4	knx	Deferred Tax Liabilities Operating Lease Right Of Use Assets DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets	45083000	usd
CY2021Q4	knx	Deferred Tax Liabilities Operating Lease Right Of Use Assets DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets	34016000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	11909000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	11089000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1093642000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1034414000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	907893000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	874877000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	usd
CY2022Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	130400000	usd
CY2020	us-gaap	Foreign Earnings Repatriated ForeignEarningsRepatriated	23000000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1735000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2950000	usd
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4083000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1215000	usd
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1133000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1735000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1735000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2950000	usd
CY2022Q4	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	700000	usd
CY2022Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	200000	usd
CY2021Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	100000	usd
CY2022	us-gaap	Open Tax Year OpenTaxYear	2017
CY2022Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	400000	usd
CY2021Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	500000	usd
CY2022	us-gaap	Debt Instrument Collateral Fee DebtInstrumentCollateralFee	9300000	usd
CY2021	us-gaap	Debt Instrument Collateral Fee DebtInstrumentCollateralFee	3100000	usd
CY2020	us-gaap	Debt Instrument Collateral Fee DebtInstrumentCollateralFee	3500000	usd
CY2022Q4	us-gaap	Unsecured Debt UnsecuredDebt	1037462000	usd
CY2021Q4	us-gaap	Unsecured Debt UnsecuredDebt	1249969000	usd
CY2022Q4	us-gaap	Unsecured Long Term Debt UnsecuredLongTermDebt	1024668000	usd
CY2021Q4	us-gaap	Unsecured Long Term Debt UnsecuredLongTermDebt	1037552000	usd
CY2022Q4	us-gaap	Unsecured Debt UnsecuredDebt	1037462000	usd
CY2021Q4	us-gaap	Unsecured Debt UnsecuredDebt	1249969000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	1080462000	usd
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	1509969000	usd
CY2022Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	173100000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	45560000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	46795000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	11296000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	8426000	usd
CY2022	us-gaap	Sublease Income SubleaseIncome	0	usd
CY2021	us-gaap	Sublease Income SubleaseIncome	60000	usd
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	56856000	usd
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	55161000	usd
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	50823000	usd
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	37659000	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	8489000	usd
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	5232000	usd
CY2022	knx	Totalfinanceleasecost Totalfinanceleasecost	59312000	usd
CY2021	knx	Totalfinanceleasecost Totalfinanceleasecost	42891000	usd
CY2022	us-gaap	Lease Cost LeaseCost	116168000	usd
CY2021	us-gaap	Lease Cost LeaseCost	98052000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	41800000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	68901000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	33203000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	111345000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	26407000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	99259000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	18923000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	41673000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	16466000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	34693000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	81161000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	83792000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	217960000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	439663000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	31007000	usd
CY2022Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	36614000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	186953000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	403049000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	36961000	usd
CY2022Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	58672000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	149992000	usd
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	344377000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	42893000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	48171000	usd
CY2022	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	8489000	usd
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	5232000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	62093000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	108186000	usd
CY2022	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	168072000	usd
CY2021	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	95934000	usd
CY2022	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	1233000	usd
CY2021	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	1353000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Rolling Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextRollingTwelveMonths	45599000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	29207000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	17546000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	4578000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	786000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	4137000	usd
CY2022Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	101853000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	54412000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	71440000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	52535000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	70467000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-1877000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-973000	usd
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	854000	usd
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	973000	usd
CY2022	us-gaap	Amount Recognized In Net Periodic Benefit Cost And Other Comprehensive Income Loss Before Tax AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax	2700000	usd
CY2021	us-gaap	Amount Recognized In Net Periodic Benefit Cost And Other Comprehensive Income Loss Before Tax AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax	600000	usd
CY2022	us-gaap	Defined Benefit Plan Other Costs DefinedBenefitPlanOtherCosts	1264000	usd
CY2021	us-gaap	Defined Benefit Plan Other Costs DefinedBenefitPlanOtherCosts	1483000	usd
CY2022	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	2855000	usd
CY2021	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	2981000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0384
CY2021Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0253
CY2022	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0492
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0255
CY2022	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0600
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0600
CY2022Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2021Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2022Q4	us-gaap	Defined Benefit Plan Plan Assets Target Allocation Percentage DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	1
CY2021Q4	us-gaap	Defined Benefit Plan Plan Assets Target Allocation Percentage DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	1
CY2022	us-gaap	Defined Benefit Plan Benefit Obligation Contributions By Plan Participant DefinedBenefitPlanBenefitObligationContributionsByPlanParticipant	0	usd
CY2022Q4	knx	Defined Benefit Plan Expected Loss Next Fiscal Year DefinedBenefitPlanExpectedLossNextFiscalYear	0	usd
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	3632000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	3770000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	3870000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	3996000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	4043000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	20191000	usd
CY2022Q4	knx	Defined Benefit Plan Expected Future Benefit Payments Total DefinedBenefitPlanExpectedFutureBenefitPaymentsTotal	39502000	usd
CY2022Q4	us-gaap	Accrued Professional Fees Current And Noncurrent AccruedProfessionalFeesCurrentAndNoncurrent	11000000	usd
CY2021Q4	us-gaap	Accrued Professional Fees Current And Noncurrent AccruedProfessionalFeesCurrentAndNoncurrent	18100000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies Gross AccrualForEnvironmentalLossContingenciesGross	1300000	usd
CY2022	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	299941000	usd
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	57175000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	33928000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	28131000	usd
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	26594000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	4201000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	8357000	usd
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	4949000	usd
CY2022Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	64750000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y2M12D
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	652827	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	674711	shares
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	868535	shares
CY2022Q4	us-gaap	Share Price SharePrice	52.41
CY2021Q4	us-gaap	Share Price SharePrice	60.94
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	76900	shares
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	207242	shares
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	382254	shares
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1297000	usd
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	4120000	usd
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	4929000	usd
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2511000	usd
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5924000	usd
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	10199000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	63000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	1304000	usd
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	1029000	usd
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	600000	usd
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	1000000	usd
CY2022	knx	Maximum Amount For Which Common Stock Can Be Purchased By Employees During Period MaximumAmountForWhichCommonStockCanBePurchasedByEmployeesDuringPeriod	6250	usd
CY2022	knx	Maximum Amount For Which Common Stock Can Be Purchased By Employees In Any Calendar Year MaximumAmountForWhichCommonStockCanBePurchasedByEmployeesInAnyCalendarYear	25000	usd
CY2022	knx	Purchase Of Common Stock Under Employee Stock Purchase Plan PurchaseOfCommonStockUnderEmployeeStockPurchasePlan	0.05
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	162260000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	165860000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	169711000	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	951000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	1200000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	838000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	163211000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	167060000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	170549000	shares
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	335000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	208000	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	63000	shares
CY2022Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	7175000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	7130000	usd
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	5866000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	5859000	usd
CY2022Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	103517000	usd
CY2022Q4	us-gaap	Equity Method Investments Fair Value Disclosure EquityMethodInvestmentsFairValueDisclosure	103517000	usd
CY2021Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	75769000	usd
CY2021Q4	us-gaap	Equity Method Investments Fair Value Disclosure EquityMethodInvestmentsFairValueDisclosure	75769000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	1668000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	1668000	usd
CY2021Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	74201000	usd
CY2021Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	74201000	usd
CY2022Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	11341000	usd
CY2022Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	11341000	usd
CY2021Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	10141000	usd
CY2021Q4	us-gaap	Investment Owned At Fair Value InvestmentOwnedAtFairValue	10141000	usd
CY2022Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	4217000	usd
CY2022Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	4217000	usd
CY2021Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	13100000	usd
CY2021Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	13100000	usd
CY2022Q4	us-gaap	Investment Owned Underlying Face Amount At Market Value InvestmentOwnedUnderlyingFaceAmountAtMarketValue	10000000	usd
CY2022Q4	us-gaap	Accounts Receivable Related Parties Current AccountsReceivableRelatedPartiesCurrent	24000	usd
CY2022Q4	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	39000	usd
CY2021Q4	us-gaap	Accounts Receivable Related Parties Current AccountsReceivableRelatedPartiesCurrent	14000	usd
CY2021Q4	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	44000	usd
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	segment
CY2022	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	24	segment
CY2022	us-gaap	Revenues Revenues	7428582000	usd
CY2022	knx	Percentageof Revenue PercentageofRevenue	1.000
CY2021	us-gaap	Revenues Revenues	5998019000	usd
CY2021	knx	Percentageof Revenue PercentageofRevenue	1.000
CY2020	us-gaap	Revenues Revenues	4673863000	usd
CY2020	knx	Percentageof Revenue PercentageofRevenue	1.000
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	1091828000	usd
CY2022	knx	Percentage Of Operating Income PercentageOfOperatingIncome	1.000
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	965697000	usd
CY2021	knx	Percentage Of Operating Income PercentageOfOperatingIncome	1.000
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	564438000	usd
CY2020	knx	Percentage Of Operating Income PercentageOfOperatingIncome	1.000
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	594981000	usd
CY2022	knx	Percentage Of Depreciation PercentageOfDepreciation	1.000
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	522596000	usd
CY2021	knx	Percentage Of Depreciation PercentageOfDepreciation	1.000
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	460775000	usd
CY2020	knx	Percentage Of Depreciation PercentageOfDepreciation	1.000
CY2020	knx	Percentages Of Foreign Operations Consolidated Revenue PercentagesOfForeignOperationsConsolidatedRevenue	0.050
CY2022	knx	Percentages Of Foreign Operations Consolidated Revenue PercentagesOfForeignOperationsConsolidatedRevenue	0.050
CY2021	knx	Percentages Of Foreign Operations Consolidated Revenue PercentagesOfForeignOperationsConsolidatedRevenue	0.050
CY2021Q4	knx	Longlivedassetsofforeignoperations Longlivedassetsofforeignoperations	0.050
CY2022Q4	knx	Longlivedassetsofforeignoperations Longlivedassetsofforeignoperations	0.050

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$KNX
Knight-Swift Transportation Holdings Inc. Stock $knx

2023 Q1 Form 10-K Financial Statement

#000149269123000019 Filed on February 23, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KNX Knight-Swift Transportation Holdings Inc. Stock $knx

2023 Q1 Form 10-K Financial Statement

#000149269123000019 Filed on February 23, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KNX
Knight-Swift Transportation Holdings Inc. Stock $knx