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Long-Term Debt - Composition of Long-term Debt (Details) - USD ($) | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 08, 2015 | Sep. 04, 2014 | Jun. 02, 2014
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Debt Instrument [Line Items] |  |  |  |  |
Capital lease obligations related to real estate, maturing in varying amounts through December 2037 with a weighted average interest rate of 8.4% and 10.4%, respectively | $ 48,612,000 | $ 51,665,000 |  |  |
Capital lease obligations related to real estate, maturing in varying amounts through [Month YYYY] with a weighted average interest rate of XX% | 1,366,167,000 | 1,357,712,000 |  |  |
Less current maturities of long-term debt | 84,678,000 | 39,528,000 |  |  |
Long-term debt and capital lease obligations | 1,281,489,000 | 1,318,184,000 |  |  |
Acquisition Line |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Other long-term debt | $ 31,842,000 | 26,988,000 |  |  |
5.00% Senior Note |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate | 5.00% |  |  |  | 5.00%
Aggregate principal amount | $ 550,000,000 | 550,000,000 |  | $ 200,000,000 | $ 350,000,000
Long-term debt | $ 543,730,000 | 542,063,000 |  |  |
5.25% Senior Note |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate | 5.25% |  | 5.25% |  |
Aggregate principal amount | $ 300,000,000 | 300,000,000 | $ 300,000,000 |  |
Long-term debt | 296,735,000 | 296,151,000 |  |  |
Real Estate Related and Other Long-Term Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Aggregate principal amount | 420,100,000 |  |  |  |
Other long-term debt | $ 445,248,000 | $ 440,845,000 |  |  |
Capital Lease Obligations Related to Real Estate |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Weighted average interest rate | 8.40% | 10.40% |  |  |

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- Definition Long term debt and capital lease obligations excluding short term financing current. + References No definition available. + Details
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- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84164758&loc=d3e45023-112735 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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