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Condensed Consolidating Financial Information (Balance Sheets) (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017 | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | --- | --- | ---
Assets |  |  |  |
Cash and cash equivalents | $ 179,706 | $ 203,104 | $ 167,007 | $ 193,862
Restricted cash | 25,794 | 24,175 | 22,047 | 16,488
Other current assets | 96,127 | 101,384 |  |
Property and equipment, net | 2,512,713 | 2,539,786 |  |
Investments in subsidiaries | 0 | 0 |  |
Intercompany receivable | 0 | 0 |  |
Other assets, net | 84,750 | 86,311 |  |
Intangible assets, net | 842,317 | 842,946 |  |
Goodwill, net | 888,224 | 888,224 |  |
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent | 5,183 | 5,183 |  |
Total assets | 4,629,631 | 4,685,930 |  |
Liabilities and Stockholders’ Equity |  |  |  |
Long-term Debt, Current Maturities | 23,981 | 23,981 |  |
Other current liabilities | 357,734 | 361,490 |  |
Accumulated losses of subsidiaries in excess of investment |  | 0 |  |
Intercompany payable | 0 | 0 |  |
Long-term debt, net of current maturities and debt issuance costs | 2,969,223 | 3,051,899 |  |
Other long-term liabilities | 161,131 | 151,333 |  |
Total stockholders' equity (deficit) | 1,117,562 | 1,097,227 | $ 981,723 | $ 930,180
Total liabilities and stockholders' equity | 4,629,631 | 4,685,930 |  |
Parent |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | (2) | 347 |  |
Restricted cash | 0 | 0 |  |
Other current assets | 75,855 | 78,226 |  |
Property and equipment, net | 84,327 | 88,464 |  |
Investments in subsidiaries | 5,007,912 | 4,913,592 |  |
Intercompany receivable | 0 | 0 |  |
Other assets, net | 15,092 | 14,725 |  |
Intangible assets, net | 0 | 0 |  |
Goodwill, net | 0 | 0 |  |
Total assets | 5,183,184 | 5,095,354 |  |
Liabilities and Stockholders’ Equity |  |  |  |
Long-term Debt, Current Maturities | 23,895 | 23,895 |  |
Other current liabilities | 131,270 | 130,030 |  |
Accumulated losses of subsidiaries in excess of investment |  | 0 |  |
Intercompany payable | 1,035,428 | 888,444 |  |
Long-term debt, net of current maturities and debt issuance costs | 2,968,854 | 3,051,481 |  |
Other long-term liabilities | (93,825) | (95,723) |  |
Total stockholders' equity (deficit) | 1,117,562 | 1,097,227 |  |
Total liabilities and stockholders' equity | 5,183,184 | 5,095,354 |  |
Guarantor Subsidiaries |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 176,844 | 199,574 |  |
Restricted cash | 14,201 | 14,389 |  |
Other current assets | 16,146 | 20,687 |  |
Property and equipment, net | 2,401,519 | 2,424,361 |  |
Investments in subsidiaries | 5,996 | 0 |  |
Intercompany receivable | 1,715,185 | 1,560,841 |  |
Other assets, net | 31,465 | 33,369 |  |
Intangible assets, net | 818,258 | 818,887 |  |
Goodwill, net | 887,442 | 887,442 |  |
Total assets | 6,067,056 | 5,959,550 |  |
Liabilities and Stockholders’ Equity |  |  |  |
Long-term Debt, Current Maturities | 86 | 86 |  |
Other current liabilities | 206,411 | 212,146 |  |
Accumulated losses of subsidiaries in excess of investment |  | 73,130 |  |
Intercompany payable | 0 | 0 |  |
Long-term debt, net of current maturities and debt issuance costs | 369 | 418 |  |
Other long-term liabilities | 264,485 | 256,584 |  |
Total stockholders' equity (deficit) | 5,595,705 | 5,417,186 |  |
Total liabilities and stockholders' equity | 6,067,056 | 5,959,550 |  |
Non-Guarantor Subsidiaries (100% Owned) |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 2,864 | 3,183 |  |
Restricted cash | 11,593 | 9,786 |  |
Other current assets | 2,835 | 2,782 |  |
Property and equipment, net | 26,867 | 26,961 |  |
Investments in subsidiaries | 1,106 | 18,097 |  |
Intercompany receivable | 0 | 0 |  |
Other assets, net | 38,193 | 38,217 |  |
Intangible assets, net | 24,059 | 24,059 |  |
Goodwill, net | 782 | 782 |  |
Total assets | 108,299 | 123,867 |  |
Liabilities and Stockholders’ Equity |  |  |  |
Long-term Debt, Current Maturities | 0 | 0 |  |
Other current liabilities | 19,348 | 19,578 |  |
Accumulated losses of subsidiaries in excess of investment |  | 0 |  |
Intercompany payable | 1,052,846 | 1,046,114 |  |
Long-term debt, net of current maturities and debt issuance costs | 0 | 0 |  |
Other long-term liabilities | (10,429) | (10,428) |  |
Total stockholders' equity (deficit) | (953,466) | (931,397) |  |
Total liabilities and stockholders' equity | 108,299 | 123,867 |  |
Non-Guarantor Subsidiaries (Not 100% Owned) |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 0 | 0 |  |
Restricted cash | 0 | 0 |  |
Other current assets | 0 | 0 |  |
Property and equipment, net | 0 | 0 |  |
Investments in subsidiaries | 0 | 0 |  |
Intercompany receivable | 0 | 0 |  |
Other assets, net | 0 | 0 |  |
Intangible assets, net | 0 | 0 |  |
Goodwill, net | 0 | 0 |  |
Total assets | 0 | 0 |  |
Liabilities and Stockholders’ Equity |  |  |  |
Long-term Debt, Current Maturities | 0 | 0 |  |
Other current liabilities | 0 | 0 |  |
Accumulated losses of subsidiaries in excess of investment |  | 0 |  |
Intercompany payable | 0 | 0 |  |
Long-term debt, net of current maturities and debt issuance costs | 0 | 0 |  |
Other long-term liabilities | 0 | 0 |  |
Total stockholders' equity (deficit) | 0 | 0 |  |
Total liabilities and stockholders' equity | 0 | 0 |  |
Subsidiary, Wholly Owned [Member] |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 0 | 0 |  |
Restricted cash | 0 | 0 |  |
Other current assets | 234 | 234 |  |
Property and equipment, net | 0 | 0 |  |
Investments in subsidiaries | 0 | 0 |  |
Intercompany receivable | 373,718 | 373,718 |  |
Other assets, net | 0 | 0 |  |
Intangible assets, net | 0 | 0 |  |
Goodwill, net | 0 | 0 |  |
Total assets | 373,952 | 373,952 |  |
Liabilities and Stockholders’ Equity |  |  |  |
Long-term Debt, Current Maturities | 0 | 0 |  |
Other current liabilities | 0 | 0 |  |
Accumulated losses of subsidiaries in excess of investment |  | 0 |  |
Intercompany payable | 0 | 0 |  |
Long-term debt, net of current maturities and debt issuance costs | 0 | 0 |  |
Other long-term liabilities | 900 | 900 |  |
Total stockholders' equity (deficit) | 373,052 | 373,052 |  |
Total liabilities and stockholders' equity | 373,952 | 373,952 |  |
Eliminations |  |  |  |
Assets |  |  |  |
Cash and cash equivalents | 0 | 0 |  |
Restricted cash | 0 | 0 |  |
Other current assets | 1,057 | (545) |  |
Property and equipment, net | 0 | 0 |  |
Investments in subsidiaries | (5,015,014) | (4,931,689) |  |
Intercompany receivable | (2,088,903) | (1,934,559) |  |
Other assets, net | 0 | 0 |  |
Intangible assets, net | 0 | 0 |  |
Goodwill, net | 0 | 0 |  |
Total assets | (7,102,860) | (6,866,793) |  |
Liabilities and Stockholders’ Equity |  |  |  |
Long-term Debt, Current Maturities | 0 | 0 |  |
Other current liabilities | 705 | (264) |  |
Accumulated losses of subsidiaries in excess of investment |  | (73,130) |  |
Intercompany payable | (2,088,274) | (1,934,558) |  |
Long-term debt, net of current maturities and debt issuance costs | 0 | 0 |  |
Other long-term liabilities | 0 | 0 |  |
Total stockholders' equity (deficit) | (5,015,291) | (4,858,841) |  |
Total liabilities and stockholders' equity | $ (7,102,860) | $ (6,866,793) |  |

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