Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 item	Mar. 31, 2012	Dec. 31, 2012
Segment Information
Number of reportable segments	3
Segment information
Ownership interest in joint venture (as a percent)	50.00%
Net revenues	$ 798,246	$ 736,059
Income (loss) from operations	133,315	142,615
Depreciation and amortization	77,071	53,337
Gain (loss) from unconsolidated affiliates	1,721	1,685
Capital expenditures	62,703	119,659
Total assets	5,565,576		5,644,057
Investment in and advances to unconsolidated affiliates	201,727		204,506
Goodwill and other intangible assets, net	2,086,073		2,087,166
Midwest
Segment information
Net revenues	287,312	205,110
Income (loss) from operations	63,796	46,281
Depreciation and amortization	32,257	17,552
Capital expenditures	33,830	101,880
Total assets	2,300,768		2,318,283
Goodwill and other intangible assets, net	1,025,295		1,025,505
East/West
Segment information
Net revenues	317,048	370,629
Income (loss) from operations	69,107	83,891
Depreciation and amortization	20,833	22,241
Capital expenditures	7,071	10,659
Total assets	1,188,482		1,198,391
Investment in and advances to unconsolidated affiliates	87		87
Goodwill and other intangible assets, net	226,047		226,047
Southern Plains
Segment information
Net revenues	184,684	149,720
Income (loss) from operations	37,009	44,712
Depreciation and amortization	19,888	11,388
Gain (loss) from unconsolidated affiliates	1,737	1,678
Capital expenditures	19,027	3,932
Total assets	1,673,197		1,680,773
Investment in and advances to unconsolidated affiliates	135,251		138,514
Goodwill and other intangible assets, net	778,913		779,787
Other
Segment information
Net revenues	9,202	10,600
Income (loss) from operations	(36,597)	(32,269)
Depreciation and amortization	4,093	2,156
Gain (loss) from unconsolidated affiliates	(16)	7
Capital expenditures	2,775	3,188
Total assets	403,129		446,610
Investment in and advances to unconsolidated affiliates	66,389		65,905
Goodwill and other intangible assets, net	$ 55,818		$ 55,827
Kansas Entertainment
Segment information
Ownership interest in joint venture (as a percent)	50.00%