$ENSG
ENSIGN GROUP, INC Stock $ensg

$ensg Overview Financials Valuation SEC Filings Company Website

2017 Form 10-K Financial Statement

#000112537618000028 Filed on February 08, 2018

Income Statement

Concept	2017	2016 Q4	2016
Revenue	$1.849B	$433.0M	$1.655B
YoY Change	11.75%	16.02%	23.33%
Cost Of Revenue	$1.313B	$389.5M	$1.342B
YoY Change	-2.11%	20.36%	25.67%
Gross Profit	$535.9M	$43.50M	$313.1M
YoY Change	71.18%	-12.12%	14.2%
Gross Profit Margin	28.98%	10.05%	18.92%
Selling, General & Admin	$186.1M	$14.80M	$69.20M
YoY Change	168.93%	-13.95%	7.79%
% of Gross Profit	34.73%	34.02%	22.11%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$42.27M	$9.700M	$38.68M
YoY Change	9.27%	22.78%	37.6%
% of Gross Profit	7.89%	22.3%	12.36%
Operating Expenses	$228.3M	$24.60M	$107.8M
YoY Change	111.78%	-2.38%	16.92%
Operating Profit	$43.19M	$18.90M	$91.85M
YoY Change	-52.98%	-22.22%	-1.33%
Interest Expense	$13.62M	-$1.800M	$7.136M
YoY Change	90.81%	200.0%	152.33%
% of Operating Profit	31.53%	-9.52%	7.77%
Other Income/Expense, Net	-$12.01M		-$6.029M
YoY Change	99.15%		204.03%
Pretax Income	$31.18M	$33.90M	$85.82M
YoY Change	-63.67%	42.44%	-5.8%
Income Tax	$14.21M	$12.90M	$32.98M
% Of Pretax Income	45.56%	38.05%	38.42%
Net Earnings	$40.48M	$18.30M	$49.99M
YoY Change	-19.03%	34.56%	-9.82%
Net Earnings / Revenue	2.19%	4.23%	3.02%
Basic Earnings Per Share	$0.79		$0.99
Diluted Earnings Per Share	$0.77	$350.6K	$0.96
COMMON SHARES
Basic Shares Outstanding	50.93M shares	50.68M shares	50.56M shares
Diluted Shares Outstanding	52.83M shares		52.13M shares

Balance Sheet

Concept	2017	2016 Q4	2016
SHORT-TERM ASSETS
Cash & Short-Term Investments	$55.40M	$69.30M	$69.30M
YoY Change	-20.06%	58.94%	58.94%
Cash & Equivalents	$42.30M	$57.71M	$57.70M
Short-Term Investments	$13.10M	$11.60M	$11.60M
Other Short-Term Assets	$47.60M	$20.20M	$20.20M
YoY Change	135.64%	-25.19%	-25.19%
Inventory
Prepaid Expenses
Receivables	$265.1M	$244.4M	$244.4M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$368.1M	$333.9M	$333.9M
YoY Change	10.24%	19.42%	19.42%
LONG-TERM ASSETS
Property, Plant & Equipment	$537.1M	$484.5M	$484.5M
YoY Change	10.86%	61.7%	61.72%
Goodwill		$45.98M
YoY Change		12.45%
Intangibles
YoY Change
Long-Term Investments	$28.70M	$23.60M	$23.60M
YoY Change	21.61%	-27.83%	-27.83%
Other Assets	$29.50M	$12.61M	$37.30M
YoY Change	-20.91%	30.97%	20.71%
Total Long-Term Assets	$734.3M	$667.2M	$667.1M
YoY Change	10.07%	42.5%	42.48%
TOTAL ASSETS
Total Short-Term Assets	$368.1M	$333.9M	$333.9M
Total Long-Term Assets	$734.3M	$667.2M	$667.1M
Total Assets	$1.102B	$1.001B	$1.001B
YoY Change	10.13%	33.87%	33.86%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$39.00M	$38.99M	$39.00M
YoY Change	0.0%	8.22%	8.33%
Accrued Expenses	$160.9M	$149.5M	$149.5M
YoY Change	7.63%	16.25%	16.25%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$9.900M	$8.129M	$8.100M
YoY Change	22.22%	1211.13%	1250.0%
Total Short-Term Liabilities	$225.8M	$211.9M	$211.9M
YoY Change	6.56%	17.83%	17.79%
LONG-TERM LIABILITIES
Long-Term Debt	$303.0M	$275.5M	$275.5M
YoY Change	9.98%	178.13%	178.0%
Other Long-Term Liabilities	$73.60M	$5.855M	$53.10M
YoY Change	38.61%	18.64%	26.73%
Total Long-Term Liabilities	$376.6M	$281.3M	$328.6M
YoY Change	14.61%	170.56%	133.05%
TOTAL LIABILITIES
Total Short-Term Liabilities	$225.8M	$211.9M	$211.9M
Total Long-Term Liabilities	$376.6M	$281.3M	$328.6M
Total Liabilities	$610.0M	$540.5M	$544.6M
YoY Change	12.01%	68.51%	69.98%
SHAREHOLDERS EQUITY
Retained Earnings		$235.0M
YoY Change		21.51%
Common Stock		$252.5M
YoY Change		7.41%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$31.12M
YoY Change		2444.32%
Treasury Stock Shares		1.520M shares
Shareholders Equity	$492.4M	$456.4M	$456.4M
YoY Change
Total Liabilities & Shareholders Equity	$1.102B	$1.001B	$1.001B
YoY Change	10.13%	33.87%	33.86%

Cashflow Statement

Concept	2017	2016 Q4	2016
OPERATING ACTIVITIES
Net Income	$40.48M	$18.30M	$49.99M
YoY Change	-19.03%	34.56%	-9.82%
Depreciation, Depletion And Amortization	$42.27M	$9.700M	$38.68M
YoY Change	9.27%	22.78%	37.6%
Cash From Operating Activities	$79.54M	$2.700M	$73.89M
YoY Change	7.65%	-86.57%	121.43%
INVESTING ACTIVITIES
Capital Expenditures	$54.08M	-$133.5M	$65.70M
YoY Change	-17.69%	581.12%	9.47%
Acquisitions	$77.51M		$64.31M
YoY Change	20.52%		-41.96%
Other Investing Activities	$814.0K	$35.40M	-$24.00M
YoY Change	-103.39%	-224.65%	-73.57%
Cash From Investing Activities	-$113.2M	-$98.20M	-$210.6M
YoY Change	-46.27%	105.01%	24.98%
FINANCING ACTIVITIES
Cash Dividend Paid	$8.717M		$8.173M
YoY Change	6.66%		9.06%
Common Stock Issuance & Retirement, Net	$7.288M		$30.00M
YoY Change	-75.71%		-126.77%
Debt Paid & Issued, Net	$990.2M		$659.5M
YoY Change	50.13%		109.76%
Cash From Financing Activities	$18.27M	112.8M	$152.9M
YoY Change	-88.05%	283.67%	21.02%
NET CHANGE
Cash From Operating Activities	$79.54M	2.700M	$73.89M
Cash From Investing Activities	-$113.2M	-98.20M	-$210.6M
Cash From Financing Activities	$18.27M	112.8M	$152.9M
Net Change In Cash	-$15.37M	17.30M	$16.14M
YoY Change	-195.24%	981.25%	-282.57%
FREE CASH FLOW
Cash From Operating Activities	$79.54M	$2.700M	$73.89M
Capital Expenditures	$54.08M	-$133.5M	$65.70M
Free Cash Flow	$25.46M	$136.2M	$8.189M
YoY Change	210.95%	243.07%	-130.73%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-31
CY2017	dei	Document Type DocumentType	10-K
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0001125376
CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	51484963	shares
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017Q2	dei	Entity Public Float EntityPublicFloat	780000000	USD
CY2017	dei	Entity Registrant Name EntityRegistrantName	ENSIGN GROUP, INC
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2017Q4	ensg	Assistedand Independent Living Facilities AssistedandIndependentLivingFacilities	49	facilities
CY2016Q4	ensg	Cash Held In Trust For Residents CashHeldInTrustForResidents	2373000	USD
CY2017Q4	ensg	Cash Held In Trust For Residents CashHeldInTrustForResidents	2609000	USD
CY2016Q4	ensg	Deferred Rent And Other Long Term Liabilities DeferredRentAndOtherLongTermLiabilities	9124000	USD
CY2017Q4	ensg	Deferred Rent And Other Long Term Liabilities DeferredRentAndOtherLongTermLiabilities	11268000	USD
CY2016Q4	ensg	Deferred Tax Liabilities State Taxes DeferredTaxLiabilitiesStateTaxes	1023000	USD
CY2017Q4	ensg	Deferred Tax Liabilities State Taxes DeferredTaxLiabilitiesStateTaxes	911000	USD
CY2015	ensg	Effective Income Tax Rate Reconciliation Tax Benefitfrom Exerciseof Stock Options Percent EffectiveIncomeTaxRateReconciliationTaxBenefitfromExerciseofStockOptionsPercent	0.000	Rate
CY2016	ensg	Effective Income Tax Rate Reconciliation Tax Benefitfrom Exerciseof Stock Options Percent EffectiveIncomeTaxRateReconciliationTaxBenefitfromExerciseofStockOptionsPercent	0.000	Rate
CY2017	ensg	Effective Income Tax Rate Reconciliation Tax Benefitfrom Exerciseof Stock Options Percent EffectiveIncomeTaxRateReconciliationTaxBenefitfromExerciseofStockOptionsPercent	-0.045	Rate
CY2015	ensg	Escrow Deposits Used To Fund Business Acquisitions EscrowDepositsUsedToFundBusinessAcquisitions	16153000	USD
CY2016	ensg	Escrow Deposits Used To Fund Business Acquisitions EscrowDepositsUsedToFundBusinessAcquisitions	400000	USD
CY2017	ensg	Escrow Deposits Used To Fund Business Acquisitions EscrowDepositsUsedToFundBusinessAcquisitions	1582000	USD
CY2017Q4	ensg	Facilitiesunder Master Lease Arrangement FacilitiesunderMasterLeaseArrangement	25	facilities
CY2017	ensg	Facilitiesunder Medicare Probe Reviews FacilitiesunderMedicareProbeReviews	7	facilities
CY2017Q4	ensg	Home Health Hospiceand Home Care Operations HomeHealthHospiceandHomeCareOperations	46	business
CY2015	ensg	Increase Decrease In Insurance Subsidiary Deposits And Investments IncreaseDecreaseInInsuranceSubsidiaryDepositsAndInvestments	-10785000	USD
CY2016	ensg	Increase Decrease In Insurance Subsidiary Deposits And Investments IncreaseDecreaseInInsuranceSubsidiaryDepositsAndInvestments	-467000	USD
CY2017	ensg	Increase Decrease In Insurance Subsidiary Deposits And Investments IncreaseDecreaseInInsuranceSubsidiaryDepositsAndInvestments	-6592000	USD
CY2017	ensg	Increase Decreasein Deferred Tax Asset IncreaseDecreaseinDeferredTaxAsset	17995000	USD
CY2017	ensg	Increase Decreasein Deferred Tax Liability IncreaseDecreaseinDeferredTaxLiability	14080000	USD
CY2016Q4	ensg	Insurance Subsidiary Deposits And Investments InsuranceSubsidiaryDepositsAndInvestments	23634000	USD
CY2017Q4	ensg	Insurance Subsidiary Deposits And Investments InsuranceSubsidiaryDepositsAndInvestments	28685000	USD
CY2015	ensg	Intersegmentrevenue Intersegmentrevenue	0	USD
CY2016	ensg	Intersegmentrevenue Intersegmentrevenue	0	USD
CY2017	ensg	Intersegmentrevenue Intersegmentrevenue	0	USD
CY2015	ensg	Issuancecostsofcommonstockincludedinaccountspayable Issuancecostsofcommonstockincludedinaccountspayable	11699000	USD
CY2016	ensg	Issuancecostsofcommonstockincludedinaccountspayable Issuancecostsofcommonstockincludedinaccountspayable	0	USD
CY2017	ensg	Issuancecostsofcommonstockincludedinaccountspayable Issuancecostsofcommonstockincludedinaccountspayable	0	USD
CY2013	ensg	Litigation Settlement Paidto U.S.Government LitigationSettlementPaidtoU.S.Government	48000000	USD
CY2016Q4	ensg	Long Term Debt Net Of Current Maturities And Debt Discount LongTermDebtNetOfCurrentMaturitiesAndDebtDiscount	275486000	USD
CY2017Q4	ensg	Long Term Debt Net Of Current Maturities And Debt Discount LongTermDebtNetOfCurrentMaturitiesAndDebtDiscount	302990000	USD
CY2015	ensg	Lossesrelatedtooperationalclosurenetoffixedassetimpairment Lossesrelatedtooperationalclosurenetoffixedassetimpairment	0	USD
CY2016	ensg	Lossesrelatedtooperationalclosurenetoffixedassetimpairment Lossesrelatedtooperationalclosurenetoffixedassetimpairment	7205000	USD
CY2017	ensg	Lossesrelatedtooperationalclosurenetoffixedassetimpairment Lossesrelatedtooperationalclosurenetoffixedassetimpairment	2210000	USD
CY2017Q4	ensg	Master Lease Agreements MasterLeaseAgreements	6	facilities
CY2016Q4	ensg	Number Of Real Estate Properties Leased NumberOfRealEstatePropertiesLeased	160	facilities
CY2017Q4	ensg	Number Of Real Estate Properties Leased NumberOfRealEstatePropertiesLeased	167	facilities
CY2016Q4	ensg	Number Of Real Estate Properties Leased With Option To Purchase NumberOfRealEstatePropertiesLeasedWithOptionToPurchase	9	facilities
CY2017Q4	ensg	Number Of Real Estate Properties Leased With Option To Purchase NumberOfRealEstatePropertiesLeasedWithOptionToPurchase	11	facilities
CY2016Q4	ensg	Number Of Real Estate Properties Operated NumberOfRealEstatePropertiesOperated	210	facilities
CY2017Q4	ensg	Number Of Real Estate Properties Operated NumberOfRealEstatePropertiesOperated	230	facilities
CY2015Q4	ensg	Numberof Stock Repurchase Programs NumberofStockRepurchasePrograms	2	Agreements
CY2017Q4	ensg	Operational Assisted Living Units OperationalAssistedLivingUnits	5000	Beds
CY2017Q4	ensg	Operational Skilled Nursing Beds OperationalSkilledNursingBeds	18900	Beds
CY2015	ensg	Payments To Acquire Leased Assets PaymentsToAcquireLeasedAssets	17750000	USD
CY2016	ensg	Payments To Acquire Leased Assets PaymentsToAcquireLeasedAssets	120935000	USD
CY2017	ensg	Payments To Acquire Leased Assets PaymentsToAcquireLeasedAssets	195000	USD
CY2015	ensg	Paymentsofunderwriterdiscountsandcommissions Paymentsofunderwriterdiscountsandcommissions	-5961000	USD
CY2016	ensg	Paymentsofunderwriterdiscountsandcommissions Paymentsofunderwriterdiscountsandcommissions	0	USD
CY2017	ensg	Paymentsofunderwriterdiscountsandcommissions Paymentsofunderwriterdiscountsandcommissions	0	USD
CY2016Q4	ensg	Quality Assurance Fee QualityAssuranceFee	4604000	USD
CY2017Q4	ensg	Quality Assurance Fee QualityAssuranceFee	4864000	USD
CY2016Q4	ensg	Resident Deposits ResidentDeposits	6099000	USD
CY2017Q4	ensg	Resident Deposits ResidentDeposits	6574000	USD
CY2016Q4	ensg	Resident Refunds Payable ResidentRefundsPayable	18368000	USD
CY2017Q4	ensg	Resident Refunds Payable ResidentRefundsPayable	21661000	USD
CY2015	ensg	Restricted Awards Grant Date Fair Value Range Maximum RestrictedAwardsGrantDateFairValueRangeMaximum	26.55
CY2016	ensg	Restricted Awards Grant Date Fair Value Range Maximum RestrictedAwardsGrantDateFairValueRangeMaximum	23.23
CY2017	ensg	Restricted Awards Grant Date Fair Value Range Maximum RestrictedAwardsGrantDateFairValueRangeMaximum	22.90
CY2015	ensg	Restricted Awards Grant Date Fair Value Range Minimum RestrictedAwardsGrantDateFairValueRangeMinimum	21.00
CY2016	ensg	Restricted Awards Grant Date Fair Value Range Minimum RestrictedAwardsGrantDateFairValueRangeMinimum	18.79
CY2017	ensg	Restricted Awards Grant Date Fair Value Range Minimum RestrictedAwardsGrantDateFairValueRangeMinimum	18.47
CY2015	ensg	Revenue By Payor As Percent Of Total Revenue RevenueByPayorAsPercentOfTotalRevenue	1.000	Rate
CY2016	ensg	Revenue By Payor As Percent Of Total Revenue RevenueByPayorAsPercentOfTotalRevenue	1.000	Rate
CY2017	ensg	Revenue By Payor As Percent Of Total Revenue RevenueByPayorAsPercentOfTotalRevenue	1.000	Rate
CY2015	ensg	Revenueincludingintersegmentrevenue Revenueincludingintersegmentrevenue	1341826000	USD
CY2016	ensg	Revenueincludingintersegmentrevenue Revenueincludingintersegmentrevenue	1654864000	USD
CY2017	ensg	Revenueincludingintersegmentrevenue Revenueincludingintersegmentrevenue	1849317000	USD
CY2017Q4	ensg	Share Based Compensation Arrangement By Share Based Payment Award Options Vested Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedOutstandingNumber	2776000	shares
CY2014Q4	ensg	Share Based Compensation Arrangement By Share Based Payment Award Options Vested Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedOutstandingNumber	2218000	shares
CY2015Q4	ensg	Share Based Compensation Arrangement By Share Based Payment Award Options Vested Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedOutstandingNumber	2526000	shares
CY2016Q4	ensg	Share Based Compensation Arrangement By Share Based Payment Award Options Vested Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedOutstandingNumber	2704000	shares
CY2017Q4	ensg	Share Based Compensation Arrangementby Share Based Payment Award Options Fair Value Assumptions Forfeiture Rate ShareBasedCompensationArrangementbyShareBasedPaymentAwardOptionsFairValueAssumptionsForfeitureRate	0.0973	Rate
CY2017	ensg	Share Based Compensation Restricted Awards Exercise Price ShareBasedCompensationRestrictedAwardsExercisePrice	0	USD
CY2017Q4	ensg	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Fair Value ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeFairValue	25779000	USD
CY2017Q4	ensg	Transitionaland Skilled Service Facilities TransitionalandSkilledServiceFacilities	160	facilities
CY2017Q4	ensg	Transitionaland Skilled Servicesand Assistantand Independent Living Campuses TransitionalandSkilledServicesandAssistantandIndependentLivingCampuses	21	facilities
CY2015	ensg	Weighted Average Dividend Yield WeightedAverageDividendYield	0.006	Rate
CY2016	ensg	Weighted Average Dividend Yield WeightedAverageDividendYield	0.008	Rate
CY2017	ensg	Weighted Average Dividend Yield WeightedAverageDividendYield	0.008	Rate
CY2016Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	38991000	USD
CY2017Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	39043000	USD
CY2016Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	284224000	USD
CY2017Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	309029000	USD
CY2016Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	244433000	USD
CY2017Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	265068000	USD
CY2016Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	244433000	USD
CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	265068000	USD
CY2016Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current And Noncurrent AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent	9130000	USD
CY2017Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current And Noncurrent AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent	10088000	USD
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	110036000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	144093000	USD
CY2016Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	252493000	USD
CY2017Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	266058000	USD
CY2015	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	6677000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7776000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8331000	USD
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	39791000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	43961000	USD
CY2015	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	591000	USD
CY2016	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	825000	USD
CY2017	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	1039000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3824000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4634000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3035000	USD
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	258000	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	838000	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1252000	shares
CY2015	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2016	us-gaap	Asset Impairment Charges AssetImpairmentCharges	137000	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	111000	USD
CY2016Q4	us-gaap	Assets Assets	1001025000	USD
CY2017Q4	us-gaap	Assets Assets	1102433000	USD
CY2016Q4	us-gaap	Assets Current AssetsCurrent	333862000	USD
CY2017Q4	us-gaap	Assets Current AssetsCurrent	368076000	USD
CY2015Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	-18000	USD
CY2016Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	6000	USD
CY2017Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	92000	USD
CY2015	us-gaap	Business Exit Costs1 BusinessExitCosts1	0	USD
CY2016	us-gaap	Business Exit Costs1 BusinessExitCosts1	-11225000	USD
CY2017	us-gaap	Business Exit Costs1 BusinessExitCosts1	2321000	USD
CY2015	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	4171000	USD
CY2016	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	6828000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	3550000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	50408000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	41569000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	57706000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	42337000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-8839000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	16137000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-15369000	USD
CY2017Q4	us-gaap	Cash Fdic Insured Amount CashFDICInsuredAmount	250000	USD
CY2016Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2015	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.1525
CY2016	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.1625
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.1725
CY2016Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	75000000	shares
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	75000000	shares
CY2016Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	52787000	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	53675000	shares
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	50838000	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	51360000	shares
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	52000	USD
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	53000	USD
CY2015	us-gaap	Cost Of Services CostOfServices	1067694000	USD
CY2016	us-gaap	Cost Of Services CostOfServices	1341814000	USD
CY2017	us-gaap	Cost Of Services CostOfServices	1497703000	USD
CY2015	us-gaap	Costs And Expenses CostsAndExpenses	1248744000	USD
CY2016	us-gaap	Costs And Expenses CostsAndExpenses	1563017000	USD
CY2017	us-gaap	Costs And Expenses CostsAndExpenses	1768032000	USD
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	28149000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	30043000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	15141000	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	33910000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	35226000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	18116000	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5761000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5183000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2975000	USD
CY2016Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	284157000	USD
CY2017Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	316019000	USD
CY2015	us-gaap	Decrease In Restricted Cash DecreaseInRestrictedCash	5082000	USD
CY2016	us-gaap	Decrease In Restricted Cash DecreaseInRestrictedCash	0	USD
CY2017	us-gaap	Decrease In Restricted Cash DecreaseInRestrictedCash	0	USD
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	2026000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1034000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	5428000	USD
CY2015	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	1272000	USD
CY2016	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	-2251000	USD
CY2017	us-gaap	Deferred Federal State And Local Tax Expense Benefit DeferredFederalStateAndLocalTaxExpenseBenefit	6414000	USD
CY2016Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3611000	USD
CY2017Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	2799000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1251000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2208000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10329000	USD
CY2016Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	25409000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	22784000	USD
CY2016Q4	us-gaap	Deferred Revenue DeferredRevenue	6994000	USD
CY2017Q4	us-gaap	Deferred Revenue DeferredRevenue	7066000	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-754000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1217000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	986000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	48482000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	36059000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	23073000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	12745000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	48482000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	35529000	USD
CY2016Q4	us-gaap	Deferred Tax Assets State Taxes DeferredTaxAssetsStateTaxes	3461000	USD
CY2017Q4	us-gaap	Deferred Tax Assets State Taxes DeferredTaxAssetsStateTaxes	3334000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	3430000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	3302000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	21732000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	16500000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	15956000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	11090000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	7333000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Self Insurance DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsSelfInsurance	5135000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	530000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	3743000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	3625000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	20643000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	18248000	USD
CY2015	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	682000	USD
CY2016	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	862000	USD
CY2017	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1028000	USD
CY2006	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.90	Rate
CY2017	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.15	Rate
CY2016Q4	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	1582000	USD
CY2017Q4	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	228000	USD
CY2015	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	28111000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	38682000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	44472000	USD
CY2015	us-gaap	Dividends Dividends	7858000	USD
CY2016	us-gaap	Dividends Dividends	8282000	USD
CY2017	us-gaap	Dividends Dividends	8867000	USD
CY2016Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	2186000	USD
CY2017Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	2328000	USD
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.10
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.99
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.79
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.06
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.96
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.77
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.386	Rate
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.384	Rate
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.411	Rate
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	Rate
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	Rate
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	Rate
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000	Rate
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000	Rate
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.057	Rate
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.006	Rate
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.009	Rate
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.017	Rate
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.006	Rate
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.005	Rate
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.001	Rate
CY2015	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.036	Rate
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.030	Rate
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.031	Rate
CY2016Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	84686000	USD
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	90508000	USD
CY2015	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	3680000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	3079000	USD
CY2016Q4	us-gaap	Estimated Insurance Recoveries EstimatedInsuranceRecoveries	4104000	USD
CY2017Q4	us-gaap	Estimated Insurance Recoveries EstimatedInsuranceRecoveries	5394000	USD
CY2015	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	3700000	USD
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	3181000	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	0	USD
CY2015	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	3680000	USD
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	3079000	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	0	USD
CY2015	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	0	USD
CY2016	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	7190000	USD
CY2017	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	0	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	8086000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	11121000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	23612000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	1471000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1593000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1497000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	2301000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	2329000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	43162000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	43924000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	35076000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	32803000	USD
CY2015	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	0	USD
CY2016	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	6512000	USD
CY2017	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	2715000	USD
CY2015	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2016	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	19160000	USD
CY2017	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2015	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-205000	USD
CY2016	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-164000	USD
CY2017	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-278000	USD
CY2015	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
CY2016	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	USD
CY2017	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	-11000000	USD
CY2015	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	64163000	USD
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	69165000	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	80617000	USD
CY2014Q4	us-gaap	Goodwill Goodwill	30269000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	40886000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	67100000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	81062000	USD
CY2015	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	10617000	USD
CY2016	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	30343000	USD
CY2017	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	13962000	USD
CY2015	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2016	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2016	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	-4103000	USD
CY2016	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-26000	USD
CY2015	us-gaap	Health Care Organization Patient Service Revenue HealthCareOrganizationPatientServiceRevenue	1341826000	USD
CY2016	us-gaap	Health Care Organization Patient Service Revenue HealthCareOrganizationPatientServiceRevenue	1654864000	USD
CY2017	us-gaap	Health Care Organization Patient Service Revenue HealthCareOrganizationPatientServiceRevenue	1849317000	USD
CY2015	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2016	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2017	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2015	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2016	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	137000	USD
CY2017	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	111000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	91099000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	85818000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	69278000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	55917000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	52843000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	40833000	USD
CY2017	us-gaap	Income Tax Effects Allocated Directly To Equity Employee Stock Options IncomeTaxEffectsAllocatedDirectlyToEquityEmployeeStockOptions	3423000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	35182000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	32975000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	28445000	USD
CY2015	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	0	USD
CY2016	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	0	USD
CY2017	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	3915000	USD
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	35490000	USD
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	23163000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	38382000	USD
CY2015	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1780000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	577000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3329000	USD
CY2015	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	100324000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	63617000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	52301000	USD
CY2015	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	0	USD
CY2016	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	987000	USD
CY2017	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-1182000	USD
CY2015	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	22178000	USD
CY2016	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-4978000	USD
CY2017	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	5822000	USD
CY2015	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	314000	USD
CY2016	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	956000	USD
CY2017	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	483000	USD
CY2015	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	2813000	USD
CY2016	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-365000	USD
CY2017	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	2236000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	21403000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	12588000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	5777000	USD
CY2015	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	10340000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1465000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	9380000	USD
CY2015	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	5149000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-7839000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	19145000	USD
CY2015	us-gaap	Increase Decrease In Self Insurance Reserve IncreaseDecreaseInSelfInsuranceReserve	5418000	USD
CY2016	us-gaap	Increase Decrease In Self Insurance Reserve IncreaseDecreaseInSelfInsuranceReserve	8125000	USD
CY2017	us-gaap	Increase Decrease In Self Insurance Reserve IncreaseDecreaseInSelfInsuranceReserve	6095000	USD
CY2016Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	19586000	USD
CY2017Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	25249000	USD
CY2015	us-gaap	Interest Expense InterestExpense	2828000	USD
CY2016	us-gaap	Interest Expense InterestExpense	7136000	USD
CY2017	us-gaap	Interest Expense InterestExpense	13616000	USD
CY2015	us-gaap	Interest Paid InterestPaid	2773000	USD
CY2016	us-gaap	Interest Paid InterestPaid	6428000	USD
CY2017	us-gaap	Interest Paid InterestPaid	13284000	USD
CY2015	us-gaap	Investment Income Interest InvestmentIncomeInterest	845000	USD
CY2016	us-gaap	Investment Income Interest InvestmentIncomeInterest	1107000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	1609000	USD
CY2015	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	89264000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	125221000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	132932000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	540530000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	602374000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1001025000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1102433000	USD
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	211928000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	225821000	USD
CY2015Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	56003000	USD
CY2016Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	65351000	USD
CY2017Q4	us-gaap	Liability For Future Policy Benefits LiabilityForFuturePolicyBenefits	72736000	USD
CY2016	us-gaap	Liability For Future Policy Benefits Contract Terminations1 LiabilityForFuturePolicyBenefitsContractTerminations1	1223000	USD
CY2017	us-gaap	Liability For Future Policy Benefits Contract Terminations1 LiabilityForFuturePolicyBenefitsContractTerminations1	1291000	USD
CY2016	us-gaap	Liability For Future Policy Benefits Payment For Benefits LiabilityForFuturePolicyBenefitsPaymentForBenefits	66062000	USD
CY2017	us-gaap	Liability For Future Policy Benefits Payment For Benefits LiabilityForFuturePolicyBenefitsPaymentForBenefits	83300000	USD
CY2016	us-gaap	Liability For Future Policy Benefits Period Increase Decrease LiabilityForFuturePolicyBenefitsPeriodIncreaseDecrease	74187000	USD
CY2017	us-gaap	Liability For Future Policy Benefits Period Increase Decrease LiabilityForFuturePolicyBenefitsPeriodIncreaseDecrease	89394000	USD
CY2017	us-gaap	Litigation Settlement Amount Awarded To Other Party LitigationSettlementAmountAwardedToOtherParty	11000000	USD
CY2016Q4	us-gaap	Loans Receivable Net LoansReceivableNet	700000	USD
CY2017Q4	us-gaap	Loans Receivable Net LoansReceivableNet	0	USD
CY2017Q4	us-gaap	Long Term Debt LongTermDebt	316019000	USD
CY2016Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	8129000	USD
CY2017Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	9939000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	111941000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	9939000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	2904000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	170926000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	10203000	USD
CY2017Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	10106000	USD
CY2016Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	275486000	USD
CY2017Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	302990000	USD
CY2016Q4	us-gaap	Minority Interest MinorityInterest	4046000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	7662000	USD
CY2017	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-83000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	126330000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	152885000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	18272000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-168538000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-210636000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-106593000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	33369000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	73888000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	72952000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	55432000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	49990000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	40475000	USD
CY2015	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	485000	USD
CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2853000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	358000	USD
CY2015	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	3488000	USD
CY2016	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	0	USD
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Other Liabilities Assumed1 NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1	0	USD
CY2015	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	0	USD
CY2016	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	700000	USD
CY2017	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	0	USD
CY2015	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	224000	USD
CY2016	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	100000	USD
CY2016	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	1325000	USD
CY2017	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	1364000	USD
CY2016Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	50	facilities
CY2017Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	63	facilities
CY2017	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	Segments
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	93082000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	91847000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	81285000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	1755121000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	135841000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	133446000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	134942000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	135149000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	135395000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	1080348000	USD
CY2016Q4	us-gaap	Other Accrued Liabilities Current And Noncurrent OtherAccruedLiabilitiesCurrentAndNoncurrent	58763000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current And Noncurrent OtherAccruedLiabilitiesCurrentAndNoncurrent	63815000	USD
CY2016Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	12614000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	16501000	USD
CY2015	us-gaap	Other Cost Of Services OtherCostOfServices	88776000	USD
CY2016	us-gaap	Other Cost Of Services OtherCostOfServices	124581000	USD
CY2017	us-gaap	Other Cost Of Services OtherCostOfServices	131919000	USD
CY2016Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	58763000	USD
CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	63815000	USD
CY2016Q4	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	1972000	USD
CY2017Q4	us-gaap	Other Liabilities Fair Value Disclosure OtherLiabilitiesFairValueDisclosure	910000	USD
CY2016Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	5855000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	7715000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1983000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-6029000	USD
CY2017Q4	us-gaap	Other Restricted Assets Noncurrent OtherRestrictedAssetsNoncurrent	16501000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-12007000	USD
CY2016Q4	us-gaap	Other Restricted Assets OtherRestrictedAssets	673000	USD
CY2017Q4	us-gaap	Other Restricted Assets OtherRestrictedAssets	2327000	USD
CY2016Q4	us-gaap	Other Restricted Assets Noncurrent OtherRestrictedAssetsNoncurrent	12614000	USD
CY2015	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	400000	USD
CY2016	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	1582000	USD
CY2017	us-gaap	Payments For Proceeds From Deposits On Real Estate Acquisitions PaymentsForProceedsFromDepositsOnRealEstateAcquisitions	228000	USD
CY2015	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	30000000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7288000	USD
CY2015	us-gaap	Payments Of Dividends PaymentsOfDividends	7494000	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	8173000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	8717000	USD
CY2015	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2016	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3278000	USD
CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	2775000	USD
CY2015	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	119965000	USD
CY2016	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	64521000	USD
CY2017	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	89683000	USD
CY2015	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	110802000	USD
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	64310000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	89565000	USD
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	60018000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	65699000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	57166000	USD
CY2015	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2016	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	83000	USD
CY2016Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	19871000	USD
CY2017Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	28132000	USD
CY2016Q4	us-gaap	Prepaid Taxes PrepaidTaxes	302000	USD
CY2017Q4	us-gaap	Prepaid Taxes PrepaidTaxes	19447000	USD
CY2015	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	2000000	USD
CY2016	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	40734000	USD
CY2017	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2015	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	0	USD
CY2016	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	0	USD
CY2017	us-gaap	Proceeds From Insurance Settlement Operating Activities ProceedsFromInsuranceSettlementOperatingActivities	477000	USD
CY2015	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	112078000	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2015	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	334000000	USD
CY2016	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	844000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	1022015000	USD
CY2015	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	87000	USD
CY2016	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	106000	USD
CY2017	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	0	USD
CY2015	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	10000	USD
CY2016	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	391000	USD
CY2017	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	3215000	USD
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	4337000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	52843000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	40833000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	594534000	USD
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	6563000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5274000	USD
CY2015	us-gaap	Profit Loss ProfitLoss	55917000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	681177000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	484498000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	537084000	USD
CY2015	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	19802000	USD
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	28512000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	31023000	USD
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	314417000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	659514000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	990154000	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	235021000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	264691000	USD
CY2015	us-gaap	Sale Leaseback Transaction Current Period Gain Recognized SaleLeasebackTransactionCurrentPeriodGainRecognized	0	USD
CY2016	us-gaap	Sale Leaseback Transaction Current Period Gain Recognized SaleLeasebackTransactionCurrentPeriodGainRecognized	0	USD
CY2017	us-gaap	Sale Leaseback Transaction Current Period Gain Recognized SaleLeasebackTransactionCurrentPeriodGainRecognized	421000	USD
CY2017Q2	us-gaap	Sale Leaseback Transaction Deferred Gain Gross SaleLeasebackTransactionDeferredGainGross	13153000	USD
CY2016Q4	us-gaap	Sale Leaseback Transaction Deferred Gain Net SaleLeasebackTransactionDeferredGainNet	0	USD
CY2017Q4	us-gaap	Sale Leaseback Transaction Deferred Gain Net SaleLeasebackTransactionDeferredGainNet	12075000	USD
CY2017Q2	us-gaap	Sale Leaseback Transaction Gross Proceeds Investing Activities SaleLeasebackTransactionGrossProceedsInvestingActivities	38000000	USD
CY2017Q2	us-gaap	Sale Leaseback Transaction Historical Cost SaleLeasebackTransactionHistoricalCost	24847000	USD
CY2017Q2	us-gaap	Sale Leaseback Transaction Lease Terms SaleLeasebackTransactionLeaseTerms	20
CY2015	us-gaap	Sale Leaseback Transaction Net Proceeds Investing Activities SaleLeasebackTransactionNetProceedsInvestingActivities	0	USD
CY2016	us-gaap	Sale Leaseback Transaction Net Proceeds Investing Activities SaleLeasebackTransactionNetProceedsInvestingActivities	0	USD
CY2017	us-gaap	Sale Leaseback Transaction Net Proceeds Investing Activities SaleLeasebackTransactionNetProceedsInvestingActivities	38000000	USD
CY2015	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	1341826000	USD
CY2016	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	1654864000	USD
CY2017	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	1849317000	USD
CY2016Q4	us-gaap	Security Deposit SecurityDeposit	3526000	USD
CY2017Q4	us-gaap	Security Deposit SecurityDeposit	5981000	USD
CY2016Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	21359000	USD
CY2017Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	22516000	USD
CY2016Q4	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	43992000	USD
CY2017Q4	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	50220000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	6677000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	9101000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	9695000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P5Y0M
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	16.81
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	20.85
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	20.34
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	22.99
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	20.55
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	20.21
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	366000	shares
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	425000	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	429000	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	383000	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	15.15
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	19.79
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	20.42
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	20.65
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	234000	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	279000	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	195000	shares
CY2015	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	17.36
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	19.58
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	19.79
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.017	Rate
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.014	Rate
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.020	Rate
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.395	Rate
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.378	Rate
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.352	Rate
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	4.70
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	6.35
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	8.18
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	10.07
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	233000	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	127000	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	178000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	12.55
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	14.46
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	15.82
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	637000	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	497000	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	481000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Grant Date Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue	0
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Grant Date Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue	0
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Grant Date Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue	0
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	9.08
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	7.00
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	7.00
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5532000	shares
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5448000	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5176000	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4739000	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.51
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	10.36
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	11.62
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	13.08
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	5.20
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	6.47
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	6.93
CY2015	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	23.27
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	19.43
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	20.31
CY2017Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	2776000	shares
CY2017Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	4739000	shares
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y6M
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y4M
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y2M0D
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y8M0D
CY2016Q4	us-gaap	Short Term Investments ShortTermInvestments	11550000	USD
CY2017Q4	us-gaap	Short Term Investments ShortTermInvestments	13092000	USD
CY2015	us-gaap	Stock Issued During Period Shares Restricted Stock Award Forfeited StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited	30000	shares
CY2016	us-gaap	Stock Issued During Period Shares Restricted Stock Award Forfeited StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited	16000	shares
CY2017	us-gaap	Stock Issued During Period Shares Restricted Stock Award Forfeited StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited	24000	shares
CY2015	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	323000	shares
CY2016	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	299000	shares
CY2017	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	173000	shares
CY2015	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	488000	shares
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	642000	shares
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	740000	shares
CY2015	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	106120000	USD
CY2015	us-gaap	Stock Issued During Period Value Other StockIssuedDuringPeriodValueOther	2530000	USD
CY2016	us-gaap	Stock Issued During Period Value Other StockIssuedDuringPeriodValueOther	4152000	USD
CY2017	us-gaap	Stock Issued During Period Value Other StockIssuedDuringPeriodValueOther	5128000	USD
CY2015	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	1892000	USD
CY2016	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	2517000	USD
CY2017	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	146000	USD
CY2015	us-gaap	Stock Issued During Period Value Stock Dividend StockIssuedDuringPeriodValueStockDividend	0	USD
CY2017Q1	us-gaap	Stock Repurchase Program Expiration Date StockRepurchaseProgramExpirationDate	2018-02-08
CY2015Q4	us-gaap	Stock Repurchase Program Period In Force1 StockRepurchaseProgramPeriodInForce1	P0Y12M
CY2017Q1	us-gaap	Stock Repurchase Program Period In Force1 StockRepurchaseProgramPeriodInForce1	P0Y12M
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	456449000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	492397000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	257803000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	426985000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	460495000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	500059000	USD
CY2016Q4	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	1182000	USD
CY2017Q4	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	0	USD
CY2016Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1520000	shares
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1932000	shares
CY2016Q4	us-gaap	Treasury Stock Value TreasuryStockValue	31117000	USD
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	38405000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0	USD
CY2017	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	530000	USD
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52210000	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52133000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52829000	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50316000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50555000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	50932000	shares
CY2015	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	0	USD
CY2016	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	321000	USD
CY2017	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	0	USD
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:12px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Estimates and Assumptions —</font><font style="font-family:inherit;font-size:10pt;"> The preparation of Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the Financial Statements and the reported amounts of revenue and expenses during the reporting periods. The most significant estimates in the Company’s Financial Statements relate to revenue, allowance for doubtful accounts, intangible assets and goodwill, impairment of long-lived assets, general and professional liability, workers' compensation and healthcare claims included in accrued self-insurance liabilities, and income taxes. Actual results could differ from those estimates.</font></div></div>

Files In Submission

Name	View Source	Status
0001125376-18-000028-index-headers.html	Edgar Link	pending
0001125376-18-000028-index.html	Edgar Link	pending
0001125376-18-000028.txt	Edgar Link	pending
0001125376-18-000028-xbrl.zip	Edgar Link	pending
ensg-20171231.xml	Edgar Link	completed
ensg-20171231.xsd	Edgar Link	pending
ensg-20171231_cal.xml	Edgar Link	unprocessable
ensg-20171231_def.xml	Edgar Link	unprocessable
ensg-20171231_lab.xml	Edgar Link	unprocessable
ensg-20171231_pre.xml	Edgar Link	unprocessable
ensg123117ex211.htm	Edgar Link	pending
ensg123117ex231.htm	Edgar Link	pending
ensg123117ex321.htm	Edgar Link	pending
ensg1231201710k.htm	Edgar Link	pending
ensg12312017ex322.htm	Edgar Link	pending
ensgex1087.htm	Edgar Link	pending
ensgex1088.htm	Edgar Link	pending
ensggraph2017.jpg	Edgar Link	pending
ensgq42017ex311.htm	Edgar Link	pending
ensgq42017ex312.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$ENSG
ENSIGN GROUP, INC Stock $ensg

2017 Form 10-K Financial Statement

#000112537618000028 Filed on February 08, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ENSG ENSIGN GROUP, INC Stock $ensg

2017 Form 10-K Financial Statement

#000112537618000028 Filed on February 08, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ENSG
ENSIGN GROUP, INC Stock $ensg