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Long-Term Debt - Notes Narrative (Details) |  |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 10, 2017 USD ($) $ / shares | May 09, 2013 USD ($) $ / shares | Mar. 31, 2017 USD ($) | Dec. 31, 2018 USD ($) Location | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Mar. 27, 2017 | Jul. 02, 2012
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Outstanding mortgage principal balance |  |  |  | $ 956,017,000 | $ 1,037,911,000 |  |  |
Loss on repurchase of debt instrument |  |  | $ (15,300,000) | 0 | $ 14,607,000 | $ 0 |  |
Mortgage notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Mortgage financing aggregate |  |  |  | $ 21,100,000 |  |  |  |
Number of operating locations related to mortgage financing | Location |  |  |  | 3 |  |  |  |
Debt weighted average interest rate on note |  |  |  | 4.70% |  |  |  |
Outstanding mortgage principal balance |  |  |  | $ 396,200,000 |  |  |  |
Percentage of operating locations related to mortgage financing |  |  |  | 50.00% |  |  |  |
6.125% Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate on debt agreement | 6.125% |  |  | 6.125% | 6.125% |  |  |
Principal amount | $ 250,000,000.0 |  |  |  |  |  |  |
Notes issued at a price of principal amount | 100.00% |  |  |  |  |  |  |
Notes redemption price percentage of the principal amount |  |  |  | 100.00% |  |  |  |
Redemption Price |  |  |  | 106.125% |  |  |  |
Notes redemption price percentage of the par value due to change of control | 101.00% |  |  |  |  |  |  |
Debt instrument maximum allowed dividends per share (usd per share) | $ / shares | $ 0.12 |  |  |  |  |  |  |
Outstanding principal amount of the 6.125% notes | 25.00% |  |  |  |  |  |  |
6.125% Notes | Maximum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Notes redemption price percentage of the principal amount |  |  |  | 35.00% |  |  |  |
6.125% Notes | Minimum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Indebtedness with outstanding balance under other agreements |  |  |  | $ 50,000,000.0 |  |  |  |
7.0% Senior Subordinated Notes due 2022 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate on debt agreement |  |  |  | 7.00% | 7.00% |  | 7.00% | 7.00%
5.0% Senior Subordinated Notes due 2023 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate on debt agreement |  | 5.00% |  | 5.00% | 5.00% |  |  |
Principal amount |  | $ 300,000,000.0 |  |  |  |  |  |
Notes issued at a price of principal amount |  | 100.00% |  |  |  |  |  |
Notes redemption price percentage of the par value due to change of control |  | 101.00% |  |  |  |  |  |
Debt instrument maximum allowed dividends per share (usd per share) | $ / shares |  | $ 0.10 |  |  |  |  |  |
Outstanding principal amount of the 6.125% notes |  |  |  | 25.00% |  |  |  |
Outstanding notes repurchased amount |  |  |  |  |  | 10,700,000 |  |
Repurchase amount paid in cash, plus accrued and unpaid interest related thereto |  |  |  |  |  | $ 10,600,000 |  |
5.0% Senior Subordinated Notes due 2023 | Minimum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Indebtedness with outstanding balance under other agreements |  |  |  | $ 50,000,000.0 |  |  |  |
9.0% Senior Subordinated Notes due 2018 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Stated interest rate on debt agreement |  | 9.00% |  |  |  |  |  |

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