Prepaid Expenses and Other Current Assets and Other Accrued Liabilities (Schedule of Other Accrued Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Deferred Costs, Capitalized, Prepaid, and Other Assets and Other Liabilities Disclosure [Abstract]
Payroll related expenses	$ 28,859	$ 33,852
Accrued content library expense	21,387	21,602
Business taxes	23,591	22,939
Insurance	13,682	13,379
Professional fees	3,338	930
Service contract provider expenses	6,480	8,134
Deferred rent expense	5,848	5,713
Accrued interest expense	6,833	7,015
Other	19,855	20,563
Total other accrued liabilities	$ 129,873	$ 134,127