Long-Lived Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 Wildwater Kingdom [Member]	Dec. 31, 2010 California's Great America [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 25,000	$ 62,000