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Intangible Assets (Summary of Amortizing and Indefinite-Lived Intangibles) (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2016
Intangible Assets [Line Items] |  |
Intangible assets, gross | $ 1,204,025 | $ 1,238,545
Intangible assets, cumulative amortization | (169,204) | (172,317)
Intangible assets, cumulative impairment | (184,274) | (184,274)
Intangible assets, net | 850,547 | 881,954
Amortizing intangibles: |  |
Gross carrying value | 178,803 | 211,523
Cumulative amortization | (135,244) | (138,357)
Cumulative impairment losses | 0 | 0
Intangible assets, net | 43,559 | 73,166
Indefinite lived intangible assets: |  |
Gross carrying value | 1,025,222 | 1,027,022
Cumulative amortization | (33,960) | (33,960)
Cumulative impairment losses | (184,274) | (184,274)
Intangible assets, net | $ 806,988 | $ 808,788
Customer Relationships [Member] |  |
Amortizing intangibles: |  |
Weighted average life | 220 days | 1 year 1 month
Gross carrying value | $ 145,700 | $ 144,780
Cumulative amortization | (132,284) | (125,318)
Cumulative impairment losses | 0 | 0
Intangible assets, net | $ 13,416 | $ 19,462
Off-Market Favorable Lease [Member] |  |
Amortizing intangibles: |  |
Weighted average life | 38 years 6 months | 31 years 4 months 24 days
Gross carrying value | $ 11,730 | $ 45,370
Cumulative amortization | (2,960) | (13,039)
Cumulative impairment losses | 0 | 0
Intangible assets, net | 8,770 | 32,331
Development Agreement |  |
Amortizing intangibles: |  |
Gross carrying value | 21,373 | 21,373
Cumulative amortization | 0 | 0
Cumulative impairment losses | 0 | 0
Intangible assets, net | 21,373 | 21,373
Trademarks |  |
Indefinite lived intangible assets: |  |
Gross carrying value | 151,887 | 153,687
Cumulative amortization | 0 | 0
Cumulative impairment losses | (4,300) | (4,300)
Intangible assets, net | 147,587 | 149,387
Gaming License Rights |  |
Indefinite lived intangible assets: |  |
Gross carrying value | 873,335 | 873,335
Cumulative amortization | (33,960) | (33,960)
Cumulative impairment losses | (179,974) | (179,974)
Intangible assets, net | $ 659,401 | $ 659,401

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