$AMN
AMN HEALTHCARE SERVICES INC Stock $amn

$amn Overview Financials Valuation SEC Filings Company Website

2018 Form 10-K Financial Statement

#000114275019000008 Filed on February 21, 2019

Income Statement

Concept	2018	2017 Q4	2017 Q3
Revenue	$2.136B	$509.1M	$494.4M
YoY Change	7.42%	4.35%	4.61%
Cost Of Revenue	$1.440B	$347.0M	$334.9M
YoY Change	7.12%	5.38%	5.25%
Gross Profit	$696.4M	$162.1M	$159.5M
YoY Change	8.06%	2.2%	3.28%
Gross Profit Margin	32.6%	31.84%	32.27%
Selling, General & Admin	$452.3M	$100.4M	$100.6M
YoY Change	13.16%	-0.69%	0.58%
% of Gross Profit	64.95%	61.94%	63.04%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$41.24M	$8.500M	$8.132M
YoY Change	27.75%	10.39%	4.4%
% of Gross Profit	5.92%	5.24%	5.1%
Operating Expenses	$493.6M	$108.9M	$108.7M
YoY Change	14.25%	0.09%	0.86%
Operating Profit	$202.8M	$53.19M	$50.83M
YoY Change	-4.52%	6.8%	8.88%
Interest Expense	$16.14M	-$4.800M	$4.837M
YoY Change	-17.96%	-25.0%	60.38%
% of Operating Profit	7.96%	-9.02%	9.52%
Other Income/Expense, Net	-$79.45M	$100.0K
YoY Change	16.77%	-50.0%
Pretax Income	$186.7M	$48.40M	$45.99M
YoY Change	-3.15%	11.52%	5.32%
Income Tax	$44.94M	$21.30M	$17.86M
% Of Pretax Income	24.07%	44.01%	38.84%
Net Earnings	$141.7M	$41.17M	$28.13M
YoY Change	6.93%	56.23%	3.05%
Net Earnings / Revenue	6.64%	8.09%	5.69%
Basic Earnings Per Share	$2.99	$0.86	$0.59
Diluted Earnings Per Share	$2.91	$0.84	$0.57
COMMON SHARES
Basic Shares Outstanding	47.37M shares	47.77M shares	47.91M shares
Diluted Shares Outstanding	48.67M shares		49.45M shares

Balance Sheet

Concept	2018	2017 Q4	2017 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$13.90M	$15.10M	$19.60M
YoY Change	-7.95%	42.45%	24.84%
Cash & Equivalents	$13.90M	$15.15M	$19.63M
Short-Term Investments	$3.212B
Other Short-Term Assets	$51.50M	$50.99M	$26.22M
YoY Change	-0.19%	47.35%	-14.61%
Inventory	$3.403B	$3.471B
Prepaid Expenses		$16.51M	$15.83M
Receivables	$416.0M	$350.5M	$343.6M
Other Receivables	$800.0K	$15.90M	$0.00
Total Short-Term Assets	$482.2M	$474.2M	$442.5M
YoY Change	1.69%	5.22%	2.03%
LONG-TERM ASSETS
Property, Plant & Equipment	$90.40M	$73.43M	$68.19M
YoY Change	23.16%	22.48%	17.64%
Goodwill		$340.6M	$340.6M
YoY Change		-0.34%	-0.46%
Intangibles		$227.1M	$231.8M
YoY Change		-7.58%	-7.45%
Long-Term Investments	$2.129B	$5.115B
YoY Change	-58.38%	4.24%
Other Assets	$155.5M	$74.37M	$73.96M
YoY Change	12.11%	29.26%	29.09%
Total Long-Term Assets	$1.011B	$779.8M	$748.9M
YoY Change	29.58%	5.92%	1.74%
TOTAL ASSETS
Total Short-Term Assets	$482.2M	$474.2M	$442.5M
Total Long-Term Assets	$1.011B	$779.8M	$748.9M
Total Assets	$1.493B	$1.254B	$1.191B
YoY Change	19.04%	5.65%	1.85%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$31.50M	$130.3M	$117.9M
YoY Change	0.32%	-5.23%	-0.3%
Accrued Expenses	$165.3M	$29.24M	$45.69M
YoY Change	2.16%	-21.51%	-54.13%
Deferred Revenue		$8.384M
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$656.1M	$0.00	$0.00
YoY Change		-100.0%	-100.0%
Total Short-Term Liabilities	$307.3M	$265.3M	$245.0M
YoY Change	15.83%	-3.46%	2.04%
LONG-TERM LIABILITIES
Long-Term Debt	$440.6M	$319.8M	$319.7M
YoY Change	37.77%	-10.97%	-16.16%
Other Long-Term Liabilities	$78.50M	$79.28M	$82.67M
YoY Change	-1.01%	-3.43%	-4.92%
Total Long-Term Liabilities	$519.1M	$79.28M	$82.67M
YoY Change	30.07%	-3.43%	-4.92%
TOTAL LIABILITIES
Total Short-Term Liabilities	$307.3M	$265.3M	$245.0M
Total Long-Term Liabilities	$519.1M	$79.28M	$82.67M
Total Liabilities	$853.7M	$691.4M	$659.2M
YoY Change	23.47%	-6.25%	-10.51%
SHAREHOLDERS EQUITY
Retained Earnings		$142.2M	$101.1M
YoY Change		1370.68%	-705.92%
Common Stock		$484.0K	$484.0K
YoY Change		0.62%	0.83%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$33.43M	$20.36M
YoY Change		152.05%
Treasury Stock Shares		930.0K shares	630.0K shares
Shareholders Equity	$639.0M	$562.5M	$532.2M
YoY Change
Total Liabilities & Shareholders Equity	$1.493B	$1.254B	$1.191B
YoY Change	19.04%	5.65%	1.85%

Cashflow Statement

Concept	2018	2017 Q4	2017 Q3
OPERATING ACTIVITIES
Net Income	$141.7M	$41.17M	$28.13M
YoY Change	6.93%	56.23%	3.05%
Depreciation, Depletion And Amortization	$41.24M	$8.500M	$8.132M
YoY Change	27.75%	10.39%	4.4%
Cash From Operating Activities	$227.0M	$58.40M	$31.30M
YoY Change	41.41%	23.99%	6.1%
INVESTING ACTIVITIES
Capital Expenditures	$35.21M	-$9.300M	-$5.500M
YoY Change	32.71%	116.28%	14.58%
Acquisitions	$217.4M
YoY Change
Other Investing Activities	-$243.0M	-$1.900M	$1.000M
YoY Change	2661.36%	-83.9%	-130.3%
Cash From Investing Activities	-$279.3M	-$11.40M	-$4.400M
YoY Change	689.96%	-29.19%	-45.68%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$67.01M
YoY Change	232.34%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$37.51M	-13.40M	-24.90M
YoY Change	-148.59%	-62.88%	-7.09%
NET CHANGE
Cash From Operating Activities	$227.0M	58.40M	31.30M
Cash From Investing Activities	-$279.3M	-11.40M	-4.400M
Cash From Financing Activities	$37.51M	-13.40M	-24.90M
Net Change In Cash	-$14.57M	33.60M	2.000M
YoY Change	-130.44%	-758.82%	-137.04%
FREE CASH FLOW
Cash From Operating Activities	$227.0M	$58.40M	$31.30M
Capital Expenditures	$35.21M	-$9.300M	-$5.500M
Free Cash Flow	$191.8M	$67.70M	$36.80M
YoY Change	43.14%	31.71%	7.29%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2017Q4	ahs	Accounts Payable To Subcontractor AccountsPayableToSubcontractor	41786000	USD
CY2018Q4	ahs	Accounts Payable To Subcontractor AccountsPayableToSubcontractor	50892000	USD
CY2017Q4	ahs	Accountsreceivablesubcontractor Accountsreceivablesubcontractor	41012000	USD
CY2018Q4	ahs	Accountsreceivablesubcontractor Accountsreceivablesubcontractor	50143000	USD
CY2018	dei	Entity Shell Company EntityShellCompany	false
CY2018	dei	Entity Small Business EntitySmallBusiness	false
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2018	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2018Q4	ahs	Accounts Payable And Accrued Expenses Excluding Accrued Compensation And Benefits Current AccountsPayableAndAccruedExpensesExcludingAccruedCompensationAndBenefitsCurrent	149603000	USD
CY2017Q4	ahs	Self Insurance Reserve Liability Transferedto Insurance Subsidiary SelfInsuranceReserveLiabilityTransferedtoInsuranceSubsidiary	31639000	USD
CY2016	ahs	Supplemental Disclosures Of Non Cash Investing And Financing Activities Goodwill SupplementalDisclosuresOfNonCashInvestingAndFinancingActivitiesGoodwill	136101000	USD
CY2017	ahs	Supplemental Disclosures Of Non Cash Investing And Financing Activities Goodwill SupplementalDisclosuresOfNonCashInvestingAndFinancingActivitiesGoodwill	0	USD
CY2018	ahs	Supplemental Disclosures Of Non Cash Investing And Financing Activities Goodwill SupplementalDisclosuresOfNonCashInvestingAndFinancingActivitiesGoodwill	97910000	USD
CY2018	ahs	Noncash Or Part Noncash Acquisition Holdback Provision NoncashOrPartNoncashAcquisitionHoldbackProvision	0	USD
CY2017Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	130319000	USD
CY2017Q4	ahs	Accrued Travel Expense AccruedTravelExpense	3256000	USD
CY2018Q4	ahs	Accrued Travel Expense AccruedTravelExpense	3417000	USD
CY2016	ahs	Defined Contribution Plan Employer Discretionary Contribution Amount Net Of Forfeitures DefinedContributionPlanEmployerDiscretionaryContributionAmountNetOfForfeitures	5010000	USD
CY2017	ahs	Defined Contribution Plan Employer Discretionary Contribution Amount Net Of Forfeitures DefinedContributionPlanEmployerDiscretionaryContributionAmountNetOfForfeitures	4486000	USD
CY2018	ahs	Defined Contribution Plan Employer Discretionary Contribution Amount Net Of Forfeitures DefinedContributionPlanEmployerDiscretionaryContributionAmountNetOfForfeitures	5250000	USD
CY2016	ahs	Income Tax Expense Benefit Including Excess Income Tax Benefit From Share Based Compensation IncomeTaxExpenseBenefitIncludingExcessIncomeTaxBenefitFromShareBasedCompensation	67185000	USD
CY2017	ahs	Income Tax Expense Benefit Including Excess Income Tax Benefit From Share Based Compensation IncomeTaxExpenseBenefitIncludingExcessIncomeTaxBenefitFromShareBasedCompensation	60205000	USD
CY2018	ahs	Income Tax Expense Benefit Including Excess Income Tax Benefit From Share Based Compensation IncomeTaxExpenseBenefitIncludingExcessIncomeTaxBenefitFromShareBasedCompensation	44944000	USD
CY2016	ahs	Increase Decreasein Accounts Receivablessubcontractor IncreaseDecreaseinAccountsReceivablessubcontractor	-1542000	USD
CY2017	ahs	Increase Decreasein Accounts Receivablessubcontractor IncreaseDecreaseinAccountsReceivablessubcontractor	-8221000	USD
CY2018	ahs	Increase Decreasein Accounts Receivablessubcontractor IncreaseDecreaseinAccountsReceivablessubcontractor	9131000	USD
CY2016	ahs	Noncash Or Part Noncash Acquisition Earn Out Liability NoncashOrPartNoncashAcquisitionEarnOutLiability	4070000	USD
CY2017	ahs	Noncash Or Part Noncash Acquisition Earn Out Liability NoncashOrPartNoncashAcquisitionEarnOutLiability	0	USD
CY2018	ahs	Noncash Or Part Noncash Acquisition Earn Out Liability NoncashOrPartNoncashAcquisitionEarnOutLiability	10100000	USD
CY2016	ahs	Noncash Or Part Noncash Acquisition Holdback Provision NoncashOrPartNoncashAcquisitionHoldbackProvision	1830000	USD
CY2017	ahs	Noncash Or Part Noncash Acquisition Holdback Provision NoncashOrPartNoncashAcquisitionHoldbackProvision	0	USD
CY2016	ahs	Payments For Previous Acquisition Earn Out Payment PaymentsForPreviousAcquisitionEarnOutPayment	900000	USD
CY2017	ahs	Payments For Previous Acquisition Earn Out Payment PaymentsForPreviousAcquisitionEarnOutPayment	3677000	USD
CY2018	ahs	Payments For Previous Acquisition Earn Out Payment PaymentsForPreviousAcquisitionEarnOutPayment	1713000	USD
CY2016	ahs	Purchaseoffixedassetsrecordedinaccountspayableandaccruedexpenses Purchaseoffixedassetsrecordedinaccountspayableandaccruedexpenses	2134000	USD
CY2017	ahs	Purchaseoffixedassetsrecordedinaccountspayableandaccruedexpenses Purchaseoffixedassetsrecordedinaccountspayableandaccruedexpenses	2962000	USD
CY2018	ahs	Purchaseoffixedassetsrecordedinaccountspayableandaccruedexpenses Purchaseoffixedassetsrecordedinaccountspayableandaccruedexpenses	1706000	USD
CY2016	ahs	Supplemental Disclosures Of Non Cash Investing And Financing Activities Intangible Assets SupplementalDisclosuresOfNonCashInvestingAndFinancingActivitiesIntangibleAssets	89064000	USD
CY2017	ahs	Supplemental Disclosures Of Non Cash Investing And Financing Activities Intangible Assets SupplementalDisclosuresOfNonCashInvestingAndFinancingActivitiesIntangibleAssets	0	USD
CY2018	ahs	Supplemental Disclosures Of Non Cash Investing And Financing Activities Intangible Assets SupplementalDisclosuresOfNonCashInvestingAndFinancingActivitiesIntangibleAssets	122110000	USD
CY2017Q4	ahs	Total Cash Cash Equivalents And Restricted Cash Cash Equivalentsand Investments TotalCashCashEquivalentsAndRestrictedCashCashEquivalentsandInvestments	104968000	USD
CY2018Q4	ahs	Total Cash Cash Equivalents And Restricted Cash Cash Equivalentsand Investments TotalCashCashEquivalentsAndRestrictedCashCashEquivalentsandInvestments	99516000	USD
CY2018Q4	ahs	Unrecognized Tax Benefits That Would Impact Effective Tax Rate Temporary Differences UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRateTemporaryDifferences	577000	USD
CY2018	dei	Amendment Flag AmendmentFlag	false
CY2018	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Document Type DocumentType	10-K
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0001142750
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CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2018	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2018Q2	dei	Entity Public Float EntityPublicFloat	2754874744	USD
CY2018	dei	Entity Registrant Name EntityRegistrantName	AMN HEALTHCARE SERVICES INC
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CY2017Q4	us-gaap	Accrued Bonuses Current And Noncurrent AccruedBonusesCurrentAndNoncurrent	19489000	USD
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CY2017Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	3658000	USD
CY2018Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	3559000	USD
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CY2017Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	33923000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	151000	USD
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CY2017Q4	us-gaap	Common Stock Value CommonStockValue	484000	USD
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CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	45899000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	33564000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	79753000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	54598000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	45611000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	11441000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	5025000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	15099000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	8699000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	19802000	USD
CY2017Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	14744000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	705000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	12047000	USD
CY2017Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	325000000	USD
CY2018Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	445000000	USD
CY2017Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	5157000	USD
CY2018Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	4393000	USD
CY2017Q4	us-gaap	Deferred Compensation Liability Current DeferredCompensationLiabilityCurrent	49330000	USD
CY2018Q4	us-gaap	Deferred Compensation Liability Current DeferredCompensationLiabilityCurrent	55720000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-9115000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1754000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1372000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-9424000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	5607000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-667000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-667000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	66962000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	76320000	USD
CY2018Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	15012000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-309000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	3853000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	39961000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	48994000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	2590000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	1846000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1388000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1030000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	12336000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	13869000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	7326000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	6606000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	12477000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	21643000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	3844000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	4000000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	35000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	27036000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	27326000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	49235000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	51493000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	27036000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	27326000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	2628000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	29620000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	32279000	USD
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.58
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.99
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.15
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.63
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.57
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.84
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.68
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.87
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.91
CY2016	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	267000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-98000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	263000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	41237000	USD
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.21
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.67
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.65
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.86
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.77
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.89
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.76
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	121423000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	135059000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	4423000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3985000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2812000	USD
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	3351000	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2018	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	3351000	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	0	USD
CY2018	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	0	USD
CY2016	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	18703000	USD
CY2017	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	0	USD
CY2018	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	24026000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	90685000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	114924000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	125822000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	25943000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	20182000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	20756000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	21014000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	23030000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	228381000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	351671000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	137696000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	236747000	USD
CY2017Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	29494000	USD
CY2018Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	34211000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-69000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-227000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-117000	USD
CY2016	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-574000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	341754000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	340596000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	438506000	USD
CY2017Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	214939000	USD
CY2018Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	214939000	USD
CY2016	us-gaap	Gross Profit GrossProfit	619724000	USD
CY2017Q1	us-gaap	Gross Profit GrossProfit	161776000	USD
CY2017Q2	us-gaap	Gross Profit GrossProfit	161012000	USD
CY2017Q3	us-gaap	Gross Profit GrossProfit	159539000	USD
CY2017Q4	us-gaap	Gross Profit GrossProfit	162092000	USD
CY2017	us-gaap	Gross Profit GrossProfit	644419000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	167824000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	180956000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	175147000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	172456000	USD
CY2018	us-gaap	Gross Profit GrossProfit	696383000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	176167000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	192763000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	186685000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	70329000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	60205000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	44944000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2017Q4	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-14039000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-14039000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	61658000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	67467000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	39272000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	3656000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	3849000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	2956000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	0	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-4889000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-4343000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-2961000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1112000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-3256000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	7597000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	7880000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	9902000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	379000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-1175000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	413000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	73366000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	73746000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	30593000	USD
CY2017Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	15898000	USD
CY2018Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	799000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	17705000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-7862000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	17154000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	58700000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	18858000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	1453000	USD
CY2016	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	732000	USD
CY2017	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-548000	USD
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	319000	USD
CY2016	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	19142000	USD
CY2017	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	13430000	USD
CY2018	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	10252000	USD
CY2016	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-6469000	USD
CY2017	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	15537000	USD
CY2018	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-15099000	USD
CY2016	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	5662000	USD
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-4301000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	1259000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	3562000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	5406000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-5239000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	8147000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-8442000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-8980000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	455000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	2316000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-4465000	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	0	USD
CY2017	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	0	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash And Investments For Operating Activities IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities	0	USD
CY2017	us-gaap	Increase Decrease In Restricted Cash And Investments For Operating Activities IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities	0	USD
CY2018	us-gaap	Increase Decrease In Restricted Cash And Investments For Operating Activities IncreaseDecreaseInRestrictedCashAndInvestmentsForOperatingActivities	92000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	227096000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	326147000	USD
CY2016	us-gaap	Interest Expense InterestExpense	15465000	USD
CY2017	us-gaap	Interest Expense InterestExpense	19677000	USD
CY2018	us-gaap	Interest Expense InterestExpense	16143000	USD
CY2016	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	174000	USD
CY2017	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	188000	USD
CY2018	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	460000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	8057000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	17936000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	21283000	USD
CY2016	us-gaap	Investment Income Amortization Of Discount InvestmentIncomeAmortizationOfDiscount	0	USD
CY2017	us-gaap	Investment Income Amortization Of Discount InvestmentIncomeAmortizationOfDiscount	127000	USD
CY2018	us-gaap	Investment Income Amortization Of Discount InvestmentIncomeAmortizationOfDiscount	202000	USD
CY2017Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	9056000	USD
CY2018Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	8615000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	691430000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	853731000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1253957000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1492721000	USD
CY2016	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	21474000	USD
CY2017	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	0	USD
CY2018	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	16586000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	265272000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	307270000	USD
CY2017Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	5270000	USD
CY2018Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	4862000	USD
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	319843000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	440607000	USD
CY2017Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	0	USD
CY2018Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	120000000	USD
CY2017Q4	us-gaap	Long Term Notes Payable LongTermNotesPayable	319843000	USD
CY2018Q4	us-gaap	Long Term Notes Payable LongTermNotesPayable	320607000	USD
CY2017Q4	us-gaap	Loss Contingency Accrual Carrying Value Current LossContingencyAccrualCarryingValueCurrent	12548000	USD
CY2018Q4	us-gaap	Loss Contingency Accrual Carrying Value Current LossContingencyAccrualCarryingValueCurrent	24549000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	126290000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-77193000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	37511000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-258361000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-35361000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-279337000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	133909000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	160518000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	226993000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	105838000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	32008000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	31255000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	28128000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	41167000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	132558000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	42681000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	35529000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	27918000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	35613000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	141741000	USD
	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	5	aquisition
CY2018	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2016	us-gaap	Operating Expenses OperatingExpenses	428092000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	431979000	USD
CY2018	us-gaap	Operating Expenses OperatingExpenses	493555000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	191632000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	212440000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	202828000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	141286000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	18218000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	17990000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	18144000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	18349000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	18149000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	50436000	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	18793000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	20529000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	21402000	USD
CY2017Q4	us-gaap	Other Accounts Payable And Accrued Liabilities OtherAccountsPayableAndAccruedLiabilities	7655000	USD
CY2018Q4	us-gaap	Other Accounts Payable And Accrued Liabilities OtherAccountsPayableAndAccruedLiabilities	3756000	USD
CY2017Q4	us-gaap	Other Assets Current OtherAssetsCurrent	50993000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	39887000	USD
CY2017Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	9589000	USD
CY2018Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	12759000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	74366000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	96152000	USD
CY2016	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	267000	USD
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-98000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	263000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	83000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	15000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	184000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-113000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	263000	USD
CY2017Q4	us-gaap	Other Employee Related Liabilities Current OtherEmployeeRelatedLiabilitiesCurrent	3214000	USD
CY2018Q4	us-gaap	Other Employee Related Liabilities Current OtherEmployeeRelatedLiabilitiesCurrent	3954000	USD
CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	5146000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	10243000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	79279000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	78528000	USD
CY2016	us-gaap	Other Noncash Expense OtherNoncashExpense	2416000	USD
CY2017	us-gaap	Other Noncash Expense OtherNoncashExpense	2231000	USD
CY2018	us-gaap	Other Noncash Expense OtherNoncashExpense	-4841000	USD
CY2017Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	267000	USD
CY2018Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	11000	USD
CY2016	us-gaap	Payments For Previous Acquisition PaymentsForPreviousAcquisition	1848000	USD
CY2017	us-gaap	Payments For Previous Acquisition PaymentsForPreviousAcquisition	1500000	USD
CY2018	us-gaap	Payments For Previous Acquisition PaymentsForPreviousAcquisition	0	USD
CY2016	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	238000	USD
CY2017	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	-85000	USD
CY2018	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	0	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	13261000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	20164000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	67013000	USD
CY2016	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	6561000	USD
CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2018	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	2331000	USD
CY2016	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	5781000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	9374000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	11432000	USD
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	216494000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	217360000	USD
CY2016	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
CY2017	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	2000000	USD
CY2018	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	6100000	USD
CY2016	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2017	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2018	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	1180000	USD
CY2016	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	13152000	USD
CY2017	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	15096000	USD
CY2018	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	33824000	USD
CY2016	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	6911000	USD
CY2017	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	10537000	USD
CY2018	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	9917000	USD
CY2016	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2017	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	0	USD
CY2018	us-gaap	Payments To Acquire Notes Receivable PaymentsToAcquireNotesReceivable	750000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	21956000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	26529000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	35206000	USD
CY2017Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2017Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2017Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	16505000	USD
CY2018Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	12409000	USD
CY2016	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	75000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	USD
CY2016	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	325000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2016	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	124000000	USD
CY2017	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	195000000	USD
CY2016	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	2000000	USD
CY2017	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	20301000	USD
CY2018	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	25000000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	171320000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	204832000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	73431000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	90419000	USD
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	12008000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	10339000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	9006000	USD
CY2016	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	206500000	USD
CY2017	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	75000000	USD
CY2016	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	7000	USD
CY2017	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	0	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	558108000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	526842000	USD
CY2017Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	7672000	USD
CY2018	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	0	USD
CY2016	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	167813000	USD
CY2017	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	44063000	USD
CY2018	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	0	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	25506000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	26329000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	64315000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	59331000	USD
CY2017Q4	us-gaap	Restricted Cash And Investments Noncurrent RestrictedCashAndInvestmentsNoncurrent	64315000	USD
CY2018Q4	us-gaap	Restricted Cash And Investments Noncurrent RestrictedCashAndInvestmentsNoncurrent	59331000	USD
CY2017Q4	us-gaap	Restricted Investments RestrictedInvestments	6074000	USD
CY2018Q4	us-gaap	Restricted Investments RestrictedInvestments	15192000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	142229000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	286059000	USD
CY2016	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1902225000	USD
CY2017Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	495169000	USD
CY2017Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	489803000	USD
CY2017Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	494406000	USD
CY2017Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	509076000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1988454000	USD
CY2018Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	522489000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	528635000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2136074000	USD
CY2018Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	8633000	USD
CY2017Q4	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	38964000	USD
CY2018Q4	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	38324000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	398472000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	399700000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	452318000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	11399000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	10237000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	10815000	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	62000	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	66000	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	83000	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	22.57
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	30.02
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	42.32
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1237000	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1075000	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	855000	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	30.98
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	43.84
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	818000	shares
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	16.73
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	22.14
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	641000	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	637000	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	499000	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	14.90
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	16.88
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	23.04
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-5781000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-9374000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-11432000	USD
CY2016Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	150000000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	347860000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	449383000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	562527000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	638990000	USD
CY2017	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	41.41
CY2018	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	54.17
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	930000	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	2166000	shares
CY2017	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	487000	shares
CY2018	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	1236000	shares
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	33425000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	100438000	USD
CY2016	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	13261000	USD
CY2017	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	20164000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	67013000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	6537000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	6842000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4663000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4393000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	2474000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	951000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1622000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	606000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	467000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	78000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-1016000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-139000	USD
CY2016	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	513000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	475000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	868000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	731000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	753000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	563000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	949000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	547000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	4285000	USD
CY2016	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1321000	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1623000	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1297000	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49267000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49430000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48668000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	47946000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	47807000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	47371000	shares
CY2017Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	8553000	USD
CY2018Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	7817000	USD
CY2017Q4	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	19074000	USD
CY2018Q4	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	19454000	USD
CY2018	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company’s cash and cash equivalents and restricted cash, cash equivalents and investments accounts are financial instruments that are exposed to concentration of credit risk. The Company maintains most of its cash, cash equivalents and investment balances with high-credit quality and federally insured institutions. However, restricted cash equivalents and investment balances may be invested in a non-federally insured money market account and commercial paper.</font></div></div><div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-indent:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Concentration of Credit Risk</font></div><div style="line-height:120%;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div><div style="line-height:120%;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The majority of the Company’s business activity is with hospitals located throughout the United States. Credit is extended based on the evaluation of each entity’s financial condition. </font></div></div>
CY2018	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-indent:30px;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;padding-left:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;"></font></div></div>
CY2018	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-indent:16px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates</font></div><div style="line-height:120%;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"> </font></div><div style="line-height:120%;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make a number of estimates and assumptions relating to the reporting of assets and liabilities and the disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expenses during the reporting periods. On an ongoing basis, the Company evaluates its estimates, including those related to goodwill and indefinite-lived intangible assets, professional liability reserve, contingent liabilities, and income taxes. The Company bases these estimates on the information that is currently available and on various other assumptions that it believes are reasonable under the circumstances. Actual results could differ from those estimates under different assumptions or conditions.</font></div></div>

Files In Submission

Name	View Source	Status
0001142750-19-000008-index-headers.html	Edgar Link	pending
0001142750-19-000008-index.html	Edgar Link	pending
0001142750-19-000008.txt	Edgar Link	pending
0001142750-19-000008-xbrl.zip	Edgar Link	pending
a5yeartotalreturn2018a03.jpg	Edgar Link	pending
ahs-20181231.xml	Edgar Link	completed
ahs-20181231.xsd	Edgar Link	pending
ahs-20181231_cal.xml	Edgar Link	unprocessable
ahs-20181231_def.xml	Edgar Link	unprocessable
ahs-20181231_lab.xml	Edgar Link	unprocessable
ahs-20181231_pre.xml	Edgar Link	unprocessable
amn-20181231x10k.htm	Edgar Link	pending
amn-ex1033x20181231x10k.htm	Edgar Link	pending
amn-ex211x20181231x10k.htm	Edgar Link	pending
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amn-ex322x20181231x10k.htm	Edgar Link	pending
amnlogoa18.jpg	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
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AMN HEALTHCARE SERVICES INC Stock $amn

2018 Form 10-K Financial Statement

#000114275019000008 Filed on February 21, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AMN AMN HEALTHCARE SERVICES INC Stock $amn

2018 Form 10-K Financial Statement

#000114275019000008 Filed on February 21, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AMN
AMN HEALTHCARE SERVICES INC Stock $amn