CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF INCOME
Sublicensing and other revenues, revenue from related parties	$ 719	$ 514	$ 265
Direct operating expenses, depreciation and amortization	29,024	20,393	13,201
Direct operating expenses, stock-based compensation	846	763	6,242
Selling, general and administrative, depreciation and amortization	4,092	3,625	4,448
Selling, general and administrative, stock-based compensation	988	4,016	12,076
Interest income from related parties			1,629
Interest expense from related parties			$ 109