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

$knx Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000149269120000013 Filed on February 27, 2020

Income Statement

Concept	2019 Q4	2019 Q1	2019
Revenue	$1.197B	$1.205B	$4.844B
YoY Change	-14.19%	-5.24%	-9.36%
Cost Of Revenue	$473.6M	$487.5M	$1.941B
YoY Change	-15.47%	-12.02%	-14.89%
Gross Profit	$723.2M	$717.0M	$2.903B
YoY Change	-13.32%	0.0%	-5.24%
Gross Profit Margin	60.43%	59.53%	59.92%
Selling, General & Admin	$433.1M	$454.6M	$1.811B
YoY Change	-8.51%	-5.09%	-5.14%
% of Gross Profit	59.89%	63.4%	62.38%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$120.1M	$111.6M	$463.0M
YoY Change	8.3%	6.95%	7.64%
% of Gross Profit	16.61%	15.57%	15.95%
Operating Expenses	$617.3M	$1.088B	$4.417B
YoY Change	-1.2%	-7.57%	-7.51%
Operating Profit	$67.58M	$116.3M	$427.4M
YoY Change	-55.53%	64.42%	-24.88%
Interest Expense	-$6.300M	$7.348M	$29.43M
YoY Change	-18.18%	8.63%	-2.44%
% of Operating Profit	-9.32%	6.32%	6.89%
Other Income/Expense, Net	-$400.0K	-$193.0K	-$13.46M
YoY Change	-111.43%	-95.22%	-20.84%
Pretax Income	$92.90M	$116.1M	$414.0M
YoY Change	-54.12%	29.43%	-25.01%
Income Tax	$25.30M	$27.92M	$103.8M
% Of Pretax Income	27.23%	24.05%	25.07%
Net Earnings	$67.44M	$87.94M	$309.2M
YoY Change	-55.54%	24.98%	-26.25%
Net Earnings / Revenue	5.64%	7.3%	6.38%
Basic Earnings Per Share	$0.40	$0.51	$1.80
Diluted Earnings Per Share	$0.39	$0.51	$1.80
COMMON SHARES
Basic Shares Outstanding	170.6M shares	173.0M shares	171.5M shares
Diluted Shares Outstanding		173.6M shares	172.1M shares

Balance Sheet

Concept	2019 Q4	2019 Q1	2019
SHORT-TERM ASSETS
Cash & Short-Term Investments	$159.7M	$60.20M	$159.7M
YoY Change	93.58%	-23.99%	93.58%
Cash & Equivalents	$159.7M	$60.22M	$159.7M
Short-Term Investments
Other Short-Term Assets	$27.85M	$26.55M	$194.8M
YoY Change	-6.25%	-86.33%	-3.08%
Inventory
Prepaid Expenses	$62.16M	$66.06M
Receivables	$518.5M	$555.9M	$498.5M
Other Receivables	$17.10M	$1.400M	$37.10M
Total Short-Term Assets	$890.0M	$813.5M	$890.0M
YoY Change	-1.9%	-9.16%	-1.9%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.851B	$2.624B	$3.020B
YoY Change	9.1%	11.84%	15.59%
Goodwill	$2.919B	$2.919B
YoY Change	-0.01%	0.31%
Intangibles	$1.379B	$1.410B
YoY Change	-2.92%	-2.97%
Long-Term Investments
YoY Change
Other Assets	$73.11M	$51.72M	$73.10M
YoY Change	41.35%	30.28%	41.39%
Total Long-Term Assets	$7.392B	$7.268B	$7.392B
YoY Change	5.53%	7.5%	5.52%
TOTAL ASSETS
Total Short-Term Assets	$890.0M	$813.5M	$890.0M
Total Long-Term Assets	$7.392B	$7.268B	$7.392B
Total Assets	$8.282B	$8.081B	$8.282B
YoY Change	4.67%	5.55%	4.67%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$99.19M	$117.4M	$99.20M
YoY Change	-15.85%	4.57%	-15.86%
Accrued Expenses	$175.2M	$147.3M	$365.4M
YoY Change	15.66%	-21.57%	31.44%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$364.8M	$52.90M	$377.7M
YoY Change	86556.77%	11895.46%	543.44%
Total Short-Term Liabilities	$993.0M	$762.0M	$993.0M
YoY Change	61.58%	23.22%	61.57%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$364.6M	$541.1M
YoY Change	-100.0%	0.07%	-37.83%
Other Long-Term Liabilities	$14.46M	$19.28M	$307.5M
YoY Change	-37.95%	-91.87%	36.91%
Total Long-Term Liabilities	$14.46M	$383.9M	$848.6M
YoY Change	-96.27%	5.36%	-22.5%
TOTAL LIABILITIES
Total Short-Term Liabilities	$993.0M	$762.0M	$993.0M
Total Long-Term Liabilities	$14.46M	$383.9M	$848.6M
Total Liabilities	$2.613B	$2.537B	$2.616B
YoY Change	6.71%	8.08%	6.72%
SHAREHOLDERS EQUITY
Retained Earnings	$1.395B	$1.293B
YoY Change	14.68%	19.76%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$5.666B	$5.543B	$5.666B
YoY Change
Total Liabilities & Shareholders Equity	$8.282B	$8.081B	$8.282B
YoY Change	4.67%	5.55%	4.67%

Cashflow Statement

Concept	2019 Q4	2019 Q1	2019
OPERATING ACTIVITIES
Net Income	$67.44M	$87.94M	$309.2M
YoY Change	-55.54%	24.98%	-26.25%
Depreciation, Depletion And Amortization	$120.1M	$111.6M	$463.0M
YoY Change	8.3%	6.95%	7.64%
Cash From Operating Activities	$227.2M	$243.5M	$839.6M
YoY Change	-24.62%	16.56%	-4.81%
INVESTING ACTIVITIES
Capital Expenditures	-$194.0M	-$105.8M	-$830.0M
YoY Change	-23.41%	87.26%	9.79%
Acquisitions		$0.00	$1.885M
YoY Change		-100.0%	-98.15%
Other Investing Activities	$78.80M	-$2.925M	$4.284M
YoY Change	7.21%	-32.37%	-142.48%
Cash From Investing Activities	-$115.3M	-$44.72M	-$583.7M
YoY Change	-35.87%	-59.58%	-9.82%
FINANCING ACTIVITIES
Cash Dividend Paid		$10.67M	$41.43M
YoY Change		-2.83%	-3.14%
Common Stock Issuance & Retirement, Net		$0.00	$86.89M
YoY Change			-51.54%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-45.40M	-$217.8M	-$184.6M
YoY Change	-65.58%	91.84%	-27.72%
NET CHANGE
Cash From Operating Activities	227.2M	$243.5M	$839.6M
Cash From Investing Activities	-115.3M	-$44.72M	-$583.7M
Cash From Financing Activities	-45.40M	-$217.8M	-$184.6M
Net Change In Cash	66.50M	-$19.05M	$71.25M
YoY Change	-745.63%	24.43%	-443.27%
FREE CASH FLOW
Cash From Operating Activities	$227.2M	$243.5M	$839.6M
Capital Expenditures	-$194.0M	-$105.8M	-$830.0M
Free Cash Flow	$421.2M	$349.3M	$1.670B
YoY Change	-24.07%	31.61%	1.93%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001492691
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2018	knx	Excesscoveragelayer Excesscoveragelayer	1000000	USD
CY2018	knx	Excessofexcesscoveragelayer Excessofexcesscoveragelayer	1000000	USD
CY2017	knx	Percentages Of Foreign Operations Consolidated Revenue PercentagesOfForeignOperationsConsolidatedRevenue	0.050
CY2018	knx	Percentages Of Foreign Operations Consolidated Revenue PercentagesOfForeignOperationsConsolidatedRevenue	0.050
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	16355000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	18178000	USD
CY2017	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	0.100
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CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	42800000	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	170865385	shares
CY2019	us-gaap	Lease Practical Expedient Use Of Hindsight LeasePracticalExpedientUseOfHindsight	false
CY2019	us-gaap	Lease Practical Expedients Package LeasePracticalExpedientsPackage	true
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	001-35007
CY2019	dei	Entity Registrant Name EntityRegistrantName	Knight-Swift Transportation Holdings Inc.
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	20-5589597
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	20002 North 19th Avenue
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Phoenix
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	AZ
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	85027
CY2019	dei	City Area Code CityAreaCode	602
CY2019	dei	Local Phone Number LocalPhoneNumber	269-2000
CY2019	dei	Security12b Title Security12bTitle	Common Stock $0.01 Par Value
CY2019	dei	Trading Symbol TradingSymbol	KNX
CY2019	dei	Security Exchange Name SecurityExchangeName	NYSE
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CY2017	knx	Purchased Transportation PurchasedTransportation	594113000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	3486000	USD
CY2018	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	2798000	USD
CY2017	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	16844000	USD
CY2019	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	109640000	USD
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	61626000	USD
CY2017	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	41781000	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2018	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	USD
CY2017	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	16516000	USD
CY2019	us-gaap	Operating Expenses OperatingExpenses	4416512000	USD
CY2018	us-gaap	Operating Expenses OperatingExpenses	4775023000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	2224823000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	427438000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	569043000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	200630000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	3834000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	3200000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	1207000	USD
CY2019	us-gaap	Interest Expense InterestExpense	29433000	USD
CY2018	us-gaap	Interest Expense InterestExpense	30170000	USD
CY2017	us-gaap	Interest Expense InterestExpense	8686000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	12137000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	9965000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	558000	USD
CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-13462000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-17005000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-6921000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	413976000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	552038000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	193709000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	103798000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	131389000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-291716000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	310178000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	420649000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	485425000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	972000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1385000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1133000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	309206000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	419264000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	484292000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.80
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.37
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.38
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.80
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.36
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.34
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.24
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.24
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.24
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	171541000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	177018000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	110657000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	172142000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	177999000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	111697000	shares
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	788731000	USD
CY2017	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	3976905000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	13158000	USD
CY2017	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	398000	USD
CY2017	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	324000	USD
CY2017	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	4709000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	6242000	USD
CY2017	us-gaap	Dividends Dividends	25249000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	484292000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	855000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1133000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5240370000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	10950000	USD
CY2018	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	774000	USD
CY2018	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1823000	USD
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	179318000	USD
CY2018	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2550000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	11488000	USD
CY2018	us-gaap	Dividends Dividends	42642000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	419264000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2253000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1385000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	-1873000	USD
CY2018	us-gaap	Cumulative Effect On Retained Earnings Net Of Tax1 CumulativeEffectOnRetainedEarningsNetOfTax1	5301000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5462719000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	10478000	USD
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	531000	USD
CY2019	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	2298000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	86892000	USD
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2330000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	13375000	USD
CY2019	us-gaap	Dividends Dividends	41400000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	309206000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	654000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	972000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5668303000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	310178000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	420649000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	485425000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	462958000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	430089000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	207105000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	32935000	USD
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	36236000	USD
CY2017	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	8939000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	3486000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	2798000	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	16844000	USD
CY2019	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-30731000	USD
CY2018	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-62469000	USD
CY2017	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	305584000	USD
CY2019	us-gaap	Amortization Of Leased Asset AmortizationOfLeasedAsset	120769000	USD
CY2018	us-gaap	Amortization Of Leased Asset AmortizationOfLeasedAsset	0	USD
CY2017	us-gaap	Amortization Of Leased Asset AmortizationOfLeasedAsset	0	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-24156000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-4617000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-14758000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-70106000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	9375000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	48454000	USD
CY2019	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	10069000	USD
CY2018	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-48171000	USD
CY2017	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	39122000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-13180000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-18033000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-29890000	USD
CY2019	knx	Increase Decreasein Accrued Liabilitiesand Other Liabilities IncreaseDecreaseinAccruedLiabilitiesandOtherLiabilities	-919000	USD
CY2018	knx	Increase Decreasein Accrued Liabilitiesand Other Liabilities IncreaseDecreaseinAccruedLiabilitiesandOtherLiabilities	-14367000	USD
CY2017	knx	Increase Decreasein Accrued Liabilitiesand Other Liabilities IncreaseDecreaseinAccruedLiabilitiesandOtherLiabilities	35820000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-121737000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	0	USD
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	0	USD
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-3950000	USD
CY2018	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-8805000	USD
CY2017	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-5373000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	839594000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	881977000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	322590000	USD
CY2019	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	22695000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	26970000	USD
CY2017	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	10730000	USD
CY2019	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	14302000	USD
CY2018	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	22156000	USD
CY2017	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	10893000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	260140000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	225821000	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	82731000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	829977000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	755997000	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	387191000	USD
CY2019	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	16093000	USD
CY2018	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	30322000	USD
CY2017	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	1553000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1885000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	101693000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-91960000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	4284000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-10085000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-9953000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-583706000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-647292000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-204263000	USD
CY2019	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	115642000	USD
CY2018	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	46630000	USD
CY2017	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	503153000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	400000000	USD
CY2019	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	84000000	USD
CY2018	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	70000000	USD
CY2017	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	107000000	USD
CY2019	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	150000000	USD
CY2018	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	70000000	USD
CY2017	us-gaap	Proceeds From Accounts Receivable Securitization ProceedsFromAccountsReceivableSecuritization	40000000	USD
CY2019	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	185000000	USD
CY2018	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	135000000	USD
CY2017	us-gaap	Repayments Of Accounts Receivable Securitization RepaymentsOfAccountsReceivableSecuritization	0	USD
CY2019	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	13307000	USD
CY2018	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	13547000	USD
CY2017	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	13483000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	86892000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	179318000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	41425000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	42770000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	25454000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2984000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5271000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-7876000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-184636000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-255442000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	24000000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	71252000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-20757000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	142327000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	130976000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	151733000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	9406000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	202228000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	130976000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	151733000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	28916000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	28723000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	9286000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	78658000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	16106000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	51817000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	6748000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	11931000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	8361000	USD
CY2019	knx	Equipment Sales Receivables EquipmentSalesReceivables	1333000	USD
CY2018	knx	Equipment Sales Receivables EquipmentSalesReceivables	5565000	USD
CY2017	knx	Equipment Sales Receivables EquipmentSalesReceivables	350000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	9803000	USD
CY2018	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	46888000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	73657000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1175000	USD
CY2017	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	56352000	USD
CY2018	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
CY2017	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
CY2019	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0	USD
CY2018	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0	USD
CY2017	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	15020000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	159722000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	82486000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	76649000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	41331000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1602000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1427000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	202228000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	130976000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	151733000	USD
CY2019Q4	knx	Numberof Tractors In Fleet NumberofTractorsInFleet	18877	Vehicle
CY2019Q4	knx	Number Of Tractors Driven By Company Drivers NumberOfTractorsDrivenByCompanyDrivers	16432	Vehicle
CY2019Q4	knx	Number Of Owner Operator Tractors NumberOfOwnerOperatorTractors	2445	Vehicle
CY2019Q4	knx	Number Of Trailers In Fleet NumberOfTrailersInFleet	58315	Vehicle
CY2019Q4	knx	Number Of Intermodal Tractors NumberOfIntermodalTractors	643	Vehicle
CY2019Q4	knx	Number Of Intermodal Containers NumberOfIntermodalContainers	9862	Vehicle
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	Segment
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;padding-bottom:4px;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;color:#00467e;font-style:italic;font-weight:bold;">Use of Estimates —</span><span style="font-family:Arial;font-size:10pt;font-style:italic;font-weight:bold;"> </span><span style="font-family:Arial;font-size:10pt;">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><table cellpadding="0" cellspacing="0" style="padding-bottom:4px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;"/><td/></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><span style="font-family:Arial;font-size:10pt;">•</span></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">carrying amount of property and equipment, intangibles, and goodwill;</span></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-bottom:4px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;"/><td/></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><span style="font-family:Arial;font-size:10pt;">•</span></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">valuation allowances for receivables, inventories, and deferred income tax assets;</span></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-bottom:4px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;"/><td/></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><span style="font-family:Arial;font-size:10pt;">•</span></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">valuation of financial instruments;</span></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-bottom:4px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;"/><td/></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><span style="font-family:Arial;font-size:10pt;">•</span></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">calculation of stock-based compensation;</span></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-bottom:4px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;"/><td/></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><span style="font-family:Arial;font-size:10pt;">•</span></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">estimates of claims accruals; </span></div></td></tr></table><table cellpadding="0" cellspacing="0" style="padding-bottom:4px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:24px;"/><td/></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><span style="font-family:Arial;font-size:10pt;">•</span></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">leases; and</span></div></td></tr></table><div style="line-height:120%;font-size:10pt;padding-left:0px;"><span style="font-family:Arial;font-size:10pt;">•</span></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">contingent obligations.</span></div>
CY2019	knx	Percentage Of Income Tax Positions Likely To Be Realized PercentageOfIncomeTaxPositionsLikelyToBeRealized	0.50
CY2018Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	67011000	USD
CY2019Q1	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	66063000	USD
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	280527000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	51721000	USD
CY2019Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	51720000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	117883000	USD
CY2019Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	117446000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	151500000	USD
CY2019Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	147332000	USD
CY2018Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	0	USD
CY2019Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	119963000	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2019Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	168232000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	739538000	USD
CY2019Q1	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	739538000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	23294000	USD
CY2019Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	19282000	USD
CY2019Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	62160000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	3742739000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	892019000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	169425000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	73108000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	99194000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	175222000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	377651000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	80101000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	96160000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	771719000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	14455000	USD
CY2017Q3	knx	Conversion Of Stock Number Of Shares Issued Per Share Converted ConversionOfStockNumberOfSharesIssuedPerShareConverted	0.72
CY2017Q3	knx	Conversion Of Stock Number Of Shares Issued Per Share Converted ConversionOfStockNumberOfSharesIssuedPerShareConverted	0.72
CY2019	knx	Percentageofacquiredbusinessrevenue Percentageofacquiredbusinessrevenue	0.020
CY2018	knx	Percentageofacquiredbusinessrevenue Percentageofacquiredbusinessrevenue	0.016
CY2019	knx	Percentageofacquiredbusinessnetincome Percentageofacquiredbusinessnetincome	0.023
CY2018	knx	Percentageofacquiredbusinessnetincome Percentageofacquiredbusinessnetincome	0.021
CY2019Q4	knx	Percentageofacquiredbusinessassets Percentageofacquiredbusinessassets	0.016
CY2018Q4	knx	Percentageofacquiredbusinessassets Percentageofacquiredbusinessassets	0.017
CY2018	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	5366551000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	419812000	USD
CY2018	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	2.36
CY2020Q1	us-gaap	Subsequent Events Date SubsequentEventsDate	2020-01-01
CY2020Q1	us-gaap	Business Acquisition Percentage Of Voting Interests Acquired BusinessAcquisitionPercentageOfVotingInterestsAcquired	1.000
CY2019Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	8912000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	4000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	1000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	8915000	USD
CY2018Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	17413000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	1000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	16000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	17398000	USD
CY2019	knx	Short Term Investment Contractual Maturity ShortTermInvestmentContractualMaturity	P1Y
CY2019Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	7	Securities
CY2018Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	20	Securities
CY2019	knx	Swft Durationof Securitiesin Unrealized Loss Position SWFT_DurationofSecuritiesinUnrealizedLossPosition	P12M
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	30878000	USD
CY2018Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	20646000	USD
CY2019Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	536725000	USD
CY2018Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	617583000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	18178000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	16355000	USD
CY2019Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	518547000	USD
CY2018Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	601228000	USD
CY2019Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	15331000	USD
CY2018Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	16393000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	503000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	1051000	USD
CY2019Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	14828000	USD
CY2018Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	15342000	USD
CY2019Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	4163000	USD
CY2018Q4	us-gaap	Notes And Loans Receivable Net Current NotesAndLoansReceivableNetCurrent	4563000	USD
CY2019Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	10665000	USD
CY2018Q4	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	10779000	USD
CY2019	knx	Period Assetsare Expected To Be Sold PeriodAssetsareExpectedToBeSold	P12M
CY2018Q4	us-gaap	Goodwill Gross GoodwillGross	2919176000	USD
CY2017Q4	us-gaap	Goodwill Gross GoodwillGross	2887867000	USD
CY2019	us-gaap	Adjustment For Amortization AdjustmentForAmortization	-232000	USD
CY2018	us-gaap	Adjustment For Amortization AdjustmentForAmortization	-17000	USD
CY2019Q4	us-gaap	Goodwill Gross GoodwillGross	2918992000	USD
CY2018Q4	us-gaap	Goodwill Gross GoodwillGross	2919176000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	2918992000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	2919176000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	839516000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	838100000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	99957000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	57081000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	739559000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	781019000	USD
CY2019Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	639900000	USD
CY2018Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	639900000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1379459000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1420919000	USD
CY2019	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	1400000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	42876000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	42584000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	13372000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	42800000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	42700000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	42400000	USD
CY2019Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	70534000	USD
CY2018Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	68121000	USD
CY2019Q4	knx	Accrued Purchased Transportation AccruedPurchasedTransportation	39531000	USD
CY2018Q4	knx	Accrued Purchased Transportation AccruedPurchasedTransportation	58343000	USD
CY2019Q4	knx	Accrued Payrolland Purchased Transportation AccruedPayrollandPurchasedTransportation	110065000	USD
CY2018Q4	knx	Accrued Payrolland Purchased Transportation AccruedPayrollandPurchasedTransportation	126464000	USD
CY2019	knx	Defined Contribution Plan Eligible Agefor Employee DefinedContributionPlanEligibleAgeforEmployee	P18Y
CY2019	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.030
CY2019	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount	2000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	8800000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	8700000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	3900000	USD
CY2019Q4	us-gaap	Postemployment Benefits Liability Current And Noncurrent PostemploymentBenefitsLiabilityCurrentAndNoncurrent	9100000	USD
CY2018Q4	us-gaap	Postemployment Benefits Liability Current And Noncurrent PostemploymentBenefitsLiabilityCurrentAndNoncurrent	6400000	USD
CY2019Q4	us-gaap	Accrued Professional Fees Current And Noncurrent AccruedProfessionalFeesCurrentAndNoncurrent	121312000	USD
CY2018Q4	us-gaap	Accrued Professional Fees Current And Noncurrent AccruedProfessionalFeesCurrentAndNoncurrent	90789000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	53910000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	60711000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	175222000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	151500000	USD
CY2019	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	<div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:Arial;font-size:10pt;">Claims accruals were comprised of the following: </span></div><div style="line-height:120%;padding-bottom:8px;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:99.80506822612085%;border-collapse:collapse;text-align:left;"><tr><td colspan="8"/></tr><tr><td style="width:71%;"/><td style="width:1%;"/><td style="width:12%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:12%;"/><td style="width:1%;"/></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00467e;border-top:1px solid #00467e;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="7" style="vertical-align:middle;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-right:1px solid #00467e;border-top:1px solid #00467e;"><div style="text-align:center;font-size:7pt;"><span style="font-family:Arial;font-size:7pt;font-weight:bold;">December 31,</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00467e;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:middle;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:7pt;"><span style="font-family:Arial;font-size:7pt;font-weight:bold;">2019</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:middle;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-right:1px solid #00467e;"><div style="text-align:center;font-size:7pt;"><span style="font-family:Arial;font-size:7pt;font-weight:bold;">2018</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00467e;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="7" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;border-right:1px solid #00467e;"><div style="text-align:center;font-size:7pt;"><span style="font-family:Arial;font-size:7pt;font-weight:bold;">(In thousands)</span></div></td></tr><tr><td style="vertical-align:middle;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00467e;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Auto reserves</span></div></td><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#e0e0e0;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">$</span></div></td><td style="vertical-align:middle;background-color:#e0e0e0;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>224,541</span></span></div></td><td style="vertical-align:bottom;background-color:#e0e0e0;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#e0e0e0;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">$</span></div></td><td style="vertical-align:middle;background-color:#e0e0e0;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>222,004</span></span></div></td><td style="vertical-align:bottom;background-color:#e0e0e0;border-right:1px solid #00467e;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00467e;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Workers’ compensation reserves</span></div></td><td colspan="2" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>108,035</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>120,522</span></span></div></td><td style="vertical-align:bottom;border-right:1px solid #00467e;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:middle;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00467e;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Independent contractor claims reserves</span></div></td><td colspan="2" style="vertical-align:middle;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>8,044</span></span></div></td><td style="vertical-align:bottom;background-color:#e0e0e0;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:middle;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>12,170</span></span></div></td><td style="vertical-align:bottom;background-color:#e0e0e0;border-right:1px solid #00467e;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00467e;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Cargo damage reserves</span></div></td><td colspan="2" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>2,818</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>2,998</span></span></div></td><td style="vertical-align:bottom;border-right:1px solid #00467e;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:middle;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00467e;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Employee medical reserves</span></div></td><td colspan="2" style="vertical-align:middle;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>4,279</span></span></div></td><td style="vertical-align:bottom;background-color:#e0e0e0;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:middle;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>3,677</span></span></div></td><td style="vertical-align:bottom;background-color:#e0e0e0;border-right:1px solid #00467e;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:middle;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00467e;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Claims accruals</span></div></td><td colspan="2" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>347,717</span></span></div></td><td style="vertical-align:bottom;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>361,371</span></span></div></td><td style="vertical-align:bottom;border-right:1px solid #00467e;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:middle;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00467e;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Less: current portion of claims accruals</span></div></td><td colspan="2" style="vertical-align:middle;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>(150,805</span></span></div></td><td style="vertical-align:middle;background-color:#e0e0e0;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">)</span></div></td><td style="vertical-align:bottom;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:middle;background-color:#e0e0e0;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>(160,044</span></span></div></td><td style="vertical-align:middle;background-color:#e0e0e0;padding-right:2px;padding-top:2px;padding-bottom:2px;border-right:1px solid #00467e;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">)</span></div></td></tr><tr><td style="vertical-align:middle;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00467e;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">Claims accruals, less current portion</span></div></td><td style="vertical-align:middle;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">$</span></div></td><td style="vertical-align:middle;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>196,912</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:middle;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;">$</span></div></td><td style="vertical-align:middle;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:9pt;"><span style="font-family:Arial;font-size:9pt;"><span>201,327</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-right:1px solid #00467e;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #00467e;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-left:1px solid #00467e;"><div style="overflow:hidden;height:5px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #00467e;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:5px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #00467e;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:5px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #00467e;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-right:1px solid #00467e;"><div style="overflow:hidden;height:5px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr></table></div><span style="font-family:Arial;font-size:10pt;"><br/></span></div>
CY2019Q4	us-gaap	Accrued Insurance Current And Noncurrent AccruedInsuranceCurrentAndNoncurrent	347717000	USD
CY2018Q4	us-gaap	Accrued Insurance Current And Noncurrent AccruedInsuranceCurrentAndNoncurrent	361371000	USD
CY2019Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	150805000	USD
CY2018Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	160044000	USD
CY2019Q4	us-gaap	Accrued Insurance Noncurrent AccruedInsuranceNoncurrent	196912000	USD
CY2018Q4	us-gaap	Accrued Insurance Noncurrent AccruedInsuranceNoncurrent	201327000	USD
CY2019	knx	Excesscoveragelayer Excesscoveragelayer	5000000.0	USD
CY2019	knx	Excessofexcesscoveragelayer Excessofexcesscoveragelayer	5000000.0	USD
CY2019	knx	Cargo Insurancepertruckortrailer CargoInsurancepertruckortrailer	2000000.0	USD
CY2019	knx	Cargoinsuranceperoccurrence Cargoinsuranceperoccurrence	10000000.0	USD
CY2019	knx	Insurancelimittobaccoloads Insurancelimittobaccoloads	1000000.0	USD
CY2019	knx	Cargodamageinsurancedeductible Cargodamageinsurancedeductible	250000	USD
CY2020Q1	knx	Self Retention For Employee Medical Health SelfRetentionForEmployeeMedicalHealth	300000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	50703000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	44357000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	4868000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	16616000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	22300000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	8337000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	5526000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	3124000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	133000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	72845000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	69781000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	13338000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	28618000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	59508000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-323326000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	3712000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1639000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	17731000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1377000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	461000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	541000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	30953000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	61608000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-305054000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	103798000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	131389000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-291716000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	86935000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	117478000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	67798000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Contingencies State And Local IncomeTaxReconciliationTaxContingenciesStateAndLocal	17803000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Contingencies State And Local IncomeTaxReconciliationTaxContingenciesStateAndLocal	19256000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Contingencies State And Local IncomeTaxReconciliationTaxContingenciesStateAndLocal	4871000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	452000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-367000000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Contingencies Other IncomeTaxReconciliationTaxContingenciesOther	-940000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Contingencies Other IncomeTaxReconciliationTaxContingenciesOther	-5797000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Contingencies Other IncomeTaxReconciliationTaxContingenciesOther	2615000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	103798000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	131389000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-291716000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	80019000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	79675000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	5478000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	5333000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	5769000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	5325000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	32284000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	27692000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Compensated Absences DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences	3380000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Compensated Absences DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences	3499000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	8595000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	8759000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	135525000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	130283000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	135525000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	130283000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	550521000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	503570000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	11168000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	10933000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	345555000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	354944000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	0	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	374000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	907244000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	869821000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	771719000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	739538000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	200000	USD
CY2019Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	85700000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	7423000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	7096000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	729000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	38000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1056000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	5432000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	935000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	3378000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	729000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4083000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	7423000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	7096000	USD
CY2019Q4	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	1000000.0	USD
CY2019Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	400000	USD
CY2018Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	1400000	USD
CY2019	us-gaap	Debt Instrument Collateral Fee DebtInstrumentCollateralFee	7200000	USD
CY2018	us-gaap	Debt Instrument Collateral Fee DebtInstrumentCollateralFee	8100000	USD
CY2017	us-gaap	Debt Instrument Collateral Fee DebtInstrumentCollateralFee	2200000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	364825000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	365011000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	364825000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	421000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	364590000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	364825000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	365011000	USD
CY2019Q4	knx	Long Termdebt Including Revolving Lineof Credit LongTermdebtIncludingRevolvingLineofCredit	643825000	USD
CY2018Q4	knx	Long Termdebt Including Revolving Lineof Credit LongTermdebtIncludingRevolvingLineofCredit	560011000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	120201000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2897000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	360000	USD
CY2019	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	122738000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	19878000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	3048000	USD
CY2019	knx	Totalfinanceleasecost Totalfinanceleasecost	22926000	USD
CY2019	us-gaap	Lease Cost LeaseCost	145664000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	83919000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	14963000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	44482000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	30711000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	26755000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	18508000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	13764000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	1342000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	4046000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	9553000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	22309000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	195275000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	75077000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	19014000	USD
CY2019Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	4868000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	176261000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	70209000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	80101000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	12826000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	96160000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	57383000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	121737000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	3048000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	115642000	USD
CY2019	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	46858000	USD
CY2019	us-gaap	Operating Lease Variable Lease Income OperatingLeaseVariableLeaseIncome	2169000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Rolling Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextRollingTwelveMonths	46480000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	33607000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	20989000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	8386000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	988000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	842000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	111292000	USD
CY2018Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases CapitalLeasesNetInvestmentInDirectFinancingLeases	154300000	USD
CY2018Q4	us-gaap	Capital Leases Net Investment In Direct Financing Leases Accumulated Amortization CapitalLeasesNetInvestmentInDirectFinancingLeasesAccumulatedAmortization	34200000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	123380000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	61285000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	79088000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	15843000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	42441000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	30845000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	24693000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	18528000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	11728000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	1347000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	25403000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	9572000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	306733000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	137420000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	7921000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	129499000	USD
CY2018Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	58251000	USD
CY2018Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	71248000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	54080000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	37694000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	22991000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	8343000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	13000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	0	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	123121000	USD
CY2019Q4	us-gaap	Accrued Professional Fees Current And Noncurrent AccruedProfessionalFeesCurrentAndNoncurrent	121300000	USD
CY2018Q4	us-gaap	Accrued Professional Fees Current And Noncurrent AccruedProfessionalFeesCurrentAndNoncurrent	90800000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	2874000	shares
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	86892000	USD
CY2018	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	5892000	shares
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	179318000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	16038000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	12387000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	6390000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3344000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3097000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2415000	USD
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	40717000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y2M12D
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	772522	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	618067	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	886243	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1321605	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	27.13
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y7M6D
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2690000	USD
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	443288	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	23.80
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	150399	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	32.69
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	27245	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	30.68
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	700673	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	27.90
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y8M12D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	5563000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	271965	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	30.34
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P2Y
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	1496000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	425090	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	26.28
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P1Y6M
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	4064000	USD
CY2019Q4	us-gaap	Share Price SharePrice	35.84
CY2018Q4	us-gaap	Share Price SharePrice	25.07
CY2019	knx	Swappedshares Swappedshares	1721	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0072
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0149
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.2795
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y2M12D
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.78
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	443288	shares
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	533226	shares
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	589020	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	5183000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	11745000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	8792000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	10478000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	10815000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	13159000	USD
CY2019	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	221000	USD
CY2018	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	1685000	USD
CY2017	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	1833000	USD
CY2019	knx	Maximum Amount For Which Common Stock Can Be Purchased By Employees During Period MaximumAmountForWhichCommonStockCanBePurchasedByEmployeesDuringPeriod	6250	USD
CY2019	knx	Maximum Amount For Which Common Stock Can Be Purchased By Employees In Any Calendar Year MaximumAmountForWhichCommonStockCanBePurchasedByEmployeesInAnyCalendarYear	25000	USD
CY2019	knx	Purchase Of Common Stock Under Employee Stock Purchase Plan PurchaseOfCommonStockUnderEmployeeStockPurchasePlan	0.05
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Shares Purchased For Award ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesPurchasedForAward	78000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	171541000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	177018000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	110657000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	601000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	981000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	1040000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	172142000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	177999000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	111697000	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	603000	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	47000	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	98000	shares
CY2019Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	8912000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	8915000	USD
CY2018Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	17413000	USD
CY2018Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	17398000	USD
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	30878000	USD
CY2019Q4	us-gaap	Equity Method Investments Fair Value Disclosure EquityMethodInvestmentsFairValueDisclosure	30878000	USD
CY2018Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	20646000	USD
CY2018Q4	us-gaap	Equity Method Investments Fair Value Disclosure EquityMethodInvestmentsFairValueDisclosure	20646000	USD
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	8722000	USD
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	8722000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	0	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	0	USD
CY2019Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	279000000	USD
CY2019Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	279000000	USD
CY2018Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	195000000	USD
CY2018Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	195000000	USD
CY2018Q4	us-gaap	Restructuring Reserve RestructuringReserve	2225000	USD
CY2019	us-gaap	Severance Costs1 SeveranceCosts1	0	USD
CY2019	us-gaap	Payments For Restructuring PaymentsForRestructuring	2225000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	0	USD
CY2019Q4	us-gaap	Accounts Receivable Related Parties AccountsReceivableRelatedParties	2889000	USD
CY2019Q4	us-gaap	Accounts Payable Related Parties Current And Noncurrent AccountsPayableRelatedPartiesCurrentAndNoncurrent	2000	USD
CY2018Q4	us-gaap	Accounts Receivable Related Parties AccountsReceivableRelatedParties	278000	USD
CY2018Q4	us-gaap	Accounts Payable Related Parties Current And Noncurrent AccountsPayableRelatedPartiesCurrentAndNoncurrent	20000	USD
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	Segment
CY2019	us-gaap	Revenues Revenues	4843950000	USD
CY2019	knx	Percentageof Revenue PercentageofRevenue	1.000
CY2018	us-gaap	Revenues Revenues	5344066000	USD
CY2018	knx	Percentageof Revenue PercentageofRevenue	1.000
CY2017	us-gaap	Revenues Revenues	2425453000	USD
CY2017	knx	Percentageof Revenue PercentageofRevenue	1.000
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	427438000	USD
CY2019	knx	Percentage Of Operating Income PercentageOfOperatingIncome	1.000
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	569043000	USD
CY2018	knx	Percentage Of Operating Income PercentageOfOperatingIncome	1.000
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	87938000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	79205000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	74619000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	200630000	USD
CY2017	knx	Percentage Of Operating Income PercentageOfOperatingIncome	1.000
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	420082000	USD
CY2019	knx	Percentage Of Depreciation PercentageOfDepreciation	1.000
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	387505000	USD
CY2018	knx	Percentage Of Depreciation PercentageOfDepreciation	1.000
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	193733000	USD
CY2017	knx	Percentage Of Depreciation PercentageOfDepreciation	1.000
CY2019	knx	Percentages Of Foreign Operations Consolidated Revenue PercentagesOfForeignOperationsConsolidatedRevenue	0.050
CY2019Q4	knx	Longlivedassetsofforeignoperations Longlivedassetsofforeignoperations	0.050
CY2019	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	0.100
CY2019Q1	us-gaap	Revenues Revenues	1204535000	USD
CY2019Q2	us-gaap	Revenues Revenues	1242083000	USD
CY2019Q3	us-gaap	Revenues Revenues	1200522000	USD
CY2019Q4	us-gaap	Revenues Revenues	1196810000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	88183000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	79439000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	74981000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	67575000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	67444000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.46
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.46
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.44
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.39
CY2018Q1	us-gaap	Revenues Revenues	1271132000	USD
CY2018Q2	us-gaap	Revenues Revenues	1331683000	USD
CY2018Q3	us-gaap	Revenues Revenues	1346611000	USD
CY2018Q4	us-gaap	Revenues Revenues	1394640000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	70732000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	91628000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	106344000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	151945000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	70364000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	91323000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	105881000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	151696000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.39
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.60
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.87
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.39
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.60
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.86

Files In Submission

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0001492691-20-000013-index.html	Edgar Link	pending
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$KNX
Knight-Swift Transportation Holdings Inc. Stock $knx

2019 Q4 Form 10-K Financial Statement

#000149269120000013 Filed on February 27, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

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

2019 Q4 Form 10-K Financial Statement

#000149269120000013 Filed on February 27, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

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