Summarized Quarterly Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended									12 Months Ended
	Oct. 01, 2013	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly financial information
Net revenues		$ 733,967	$ 739,297	$ 700,956	$ 664,138	$ 651,361	$ 645,940	$ 652,146	$ 641,080		$ 2,838,358	$ 2,590,527	$ 2,777,886
Income (loss) from operations		90,624	142,172	123,361	111,689	(56,646)	105,853	105,467	102,514		467,846	257,188	(423,868)
Net income (loss) from continuing operations											686	(183,822)	(592,797)
Net income (loss)		$ (9,066)	$ 4,900	$ 2,983	$ 1,869	$ (149,781)	$ (15,348)	$ (19,273)	$ 580		$ 686	$ (183,822)	$ (581,252)
Basic income (loss) from continuing operations (in dollars per share)						$ (1.90)	$ (0.20)	$ (0.25)	$ 0.01		$ 0.01	$ (2.34)	$ (7.59)
Basic income (loss) per common share diluted (in dollars per share)													0.15
Basic (loss) earnings per common share (in dollars per common share)		$ (0.11)	$ 0.06	$ 0.03	$ 0.02						0.01	(2.34)	(7.44)
Basic income (loss) from continuing operations (in dollars per share)						$ (1.90)	$ (0.20)	$ (0.25)	$ 0.01		0.01	(2.34)	(7.59)
Diluted earnings per share (in dollars per share)													0.15
Diluted earnings per share (in dollars per share)		$ (0.11)	$ 0.05	$ 0.03	$ 0.02						$ 0.01	$ (2.34)	$ (7.44)
Impairment of intangible asset	$ 311,000							$ 4,600			$ 40,000	$ 74,500
Goodwill and other intangible impairment charge						$ 155,300
Impairment of long-lived assets								4,600		$ 2,200	0
Master Lease Agreement
Quarterly financial information
Interest expense for the Master Lease		$ 98,200	$ 97,800	$ 97,700	$ 96,400	$ 97,500	$ 94,600	$ 94,000	$ 93,100		$ 390,100	$ 379,200	$ 62,100