Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	8 Months Ended	12 Months Ended			4 Months Ended
	Dec. 31, 2010	Dec. 31, 2012		Dec. 31, 2011	Apr. 30, 2010 Predecessor
Net income	$ 84,841	$ 391,113		$ 13,145	$ 548,949
Other comprehensive income (loss), net of tax in 2012:
Foreign currency translation adjustment	2,539	6,835	[1]	(9,154)	5,419
Defined benefit retirement plan	(6,731)	13,890	[2]	(36,566)	1,902
Change in cash flow hedging		(501)	[3]		(559)
Net other comprehensive income (loss)	(4,192)	20,224		(45,720)	6,762
Comprehensive income (loss)	80,649	411,337		(32,575)	555,711
Comprehensive income attributable to noncontrolling interests	(34,788)	(37,104)		(35,805)	(76)
Comprehensive income (loss) attributable to Six Flags Entertainment Corporation	$ 45,861	$ 374,233		$ (68,380)	$ 555,635

[1] Foreign currency translation adjustment presented net of taxes of $0.1 million for the year ended December 31, 2012.

[2] Defined benefit retirement plan is presented net of taxes of $19.2 million for the year ended December 31, 2012.

[3] Change in cash flow hedging is reported net of taxes of $0.3 million for the year ended December 31, 2012.