Acquisitions Assets Acquired and Liabilities Assumed (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 16, 2013 Black Hawk	Feb. 09, 2012 Eagle Well	May 31, 2012 Sun Well	Dec. 07, 2011 Rogue	Jun. 19, 2013 UK Elite	Jun. 27, 2011 Baseball Heaven
Business Acquisition [Line Items]
Cash						$ 3,561		$ 1,126
Marketable securities								194
Accounts receivable				9,663		7,233	4,031	637	149
Inventory							138
Prepaid expenses and other current assets				208		782	78	759
Loan receivable									15
Property and equipment				30,581	23,842	29,787	15,309		5,855
Identifiable intangible assets					14,300	27,300	5,600	1,050	235
Other long-term assets						714		53
Accounts payable				(1,333)		(1,036)
Accrued expenses				(1,756)	(137)	(2,030)	(1,194)	(2,577)
Other long-term liabilities						(1,805)
Long-term debt						(16,000)
Capital lease obligations						(1,622)
Deferred tax liabilities						(16,539)		(447)
Deferred revenue									(416)
Total net identifiable assets				37,363	38,005	30,345	23,962	795	5,838
Goodwill	80,354	53,093	8,244	23,400	10,126	38,401	6,256	2,018	192
Non-controlling interest								(563)
Net assets acquired				$ 60,763	$ 48,131	$ 68,746	$ 30,218	$ 2,250	$ 6,030