Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net revenues:
Total revenues	$ 391,921	$ 373,750	$ 609,087	$ 560,107
Costs and expenses:
Cost of food, merchandise and other revenues	31,899	29,061	48,950	43,544
Operating expenses (exclusive of depreciation and amortization shown separately below and includes equity compensation of $2,667 and $3,918 for the three months ended June 30, 2018 and 2017, respectively, and $4,230 and $4,854 for the six months ended June 30, 2018 and 2017, respectively)	190,100	189,269	345,573	346,593
Selling, general and administrative (includes equity compensation of $3,225 and $7,988 for the three months ended June 30, 2018 and 2017, respectively, and $9,207 and $11,166 for the six months ended June 30, 2018 and 2017, respectively)	71,003	69,152	134,527	121,570
Goodwill impairment charges		269,332		269,332
Restructuring and other separation costs	3,691		12,526
Depreciation and amortization	40,018	39,500	78,448	78,367
Total costs and expenses	336,711	596,314	620,024	859,406
Operating income (loss)	55,210	(222,564)	(10,937)	(299,299)
Other (income) expense, net	(42)	83	21	(3)
Interest expense	20,561	19,452	40,474	37,713
Loss on early extinguishment of debt and write-off of discounts and debt issuance costs		123		8,143
Income (loss) before income taxes	34,691	(242,222)	(51,432)	(345,152)
Provision for (benefit from) income taxes	11,994	(66,372)	(11,285)	(108,173)
Net income (loss)	22,697	(175,850)	(40,147)	(236,979)
Other comprehensive income (loss):
Unrealized gain (loss) on derivatives, net of tax	2,476	(706)	9,967	1,698
Comprehensive income (loss)	$ 25,173	$ (176,556)	$ (30,180)	$ (235,281)
Income (loss) per share:
Net income (loss) per share, basic	$ 0.26	$ (2.05)	$ (0.47)	$ (2.77)
Net income (loss) per share, diluted	$ 0.26	$ (2.05)	$ (0.47)	$ (2.77)
Weighted average common shares outstanding:
Basic	86,399	85,745	86,305	85,560
Diluted	86,885	85,745	86,305	85,560
Admissions [Member]
Net revenues:
Total revenues	$ 225,806	$ 224,951	$ 355,809	$ 340,040
Food, Merchandise and Other [Member]
Net revenues:
Total revenues	$ 166,115	$ 148,799	$ 253,278	$ 220,067