Intangible Assets (Summary of Amortizing and Indefinite-Lived Intangibles) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011	Dec. 31, 2010
Intangible Assets [Line Items]
Intangible assets, gross	$ 793,329	$ 793,329
Intangible assets, cumulative amortization	(54,455)	(51,811)
Intangible assets, cumulative impairment	(167,500)	(167,500)
Intangible assets, net	571,374	574,018	527,322	539,714
Amortizing intangibles:
Gross carrying value	84,443	84,443
Cumulative amortization	(20,495)	(17,851)
Cumulative impairment losses	0	0
Intangible assets, net	63,948	66,592
Indefinite lived intangible assets:
Gross carrying value	708,886	708,886
Cumulative amortization	(33,960)	(33,960)
Cumulative impairment losses	(167,500)	(167,500)
Intangible assets, net	507,426	507,426
Customer Relationships
Amortizing intangibles:
Weighted average life	1 year 8 months 12 days	2 years 2 months 12 days
Gross carrying value	17,700	17,700
Cumulative amortization	(12,149)	(10,026)
Cumulative impairment losses	0	0
Intangible assets, net	5,551	7,674	7,129	14,000
Favorable Lease Rates
Amortizing intangibles:
Weighted average life	35 years 10 months 24 days	36 years 4 months 24 days
Gross carrying value	45,370	45,370
Cumulative amortization	(8,346)	(7,825)
Cumulative impairment losses	0	0
Intangible assets, net	37,024	37,545	38,067	38,588
Development Agreement
Amortizing intangibles:
Weighted average life	9 years 3 months 18 days	9 years 9 months 18 days
Gross carrying value	21,373	21,373
Cumulative amortization	0	0
Cumulative impairment losses	0	0
Intangible assets, net	21,373	21,373	0	0
Indefinite-Lived Intangible Assets, Valuation Assumptions [Abstract]
Valuation assumptions, term	10 years
Trademarks
Indefinite lived intangible assets:
Gross carrying value	141,000	141,000
Cumulative amortization	0	0
Cumulative impairment losses	(5,000)	(5,000)
Intangible assets, net	136,000	136,000	110,700	115,700
Indefinite-Lived Intangible Assets, Valuation Assumptions [Abstract]
Valuation assumptions, term	15 years
Gaming License Rights
Indefinite lived intangible assets:
Gross carrying value	567,886	567,886
Cumulative amortization	(33,960)	(33,960)
Cumulative impairment losses	(162,500)	(162,500)
Intangible assets, net	$ 371,426	$ 371,426	$ 371,426	$ 371,426
Indefinite-Lived Intangible Assets, Valuation Assumptions [Abstract]
Valuation assumptions, term	5 years
Minimum | Favorable Lease Rates
Amortizing intangibles:
Weighted average life	41 years
Indefinite-Lived Intangible Assets, Valuation Assumptions [Abstract]
Valuation assumptions, term	41 years
Maximum | Favorable Lease Rates
Amortizing intangibles:
Weighted average life	52 years
Indefinite-Lived Intangible Assets, Valuation Assumptions [Abstract]
Valuation assumptions, term	52 years