Prepaid Expenses and Other Current Assets and Other Accrued Liabilities (Schedule of Other Accrued Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Deferred Costs, Capitalized, Prepaid, and Other Assets and Other Liabilities Disclosure [Abstract]
Payroll related expenses	$ 34,896	$ 33,852
Accrued content library expense	22,496	21,602
Business taxes	21,550	22,939
Insurance	13,259	13,379
Professional fees	4,728	930
Service contract provider expenses	6,841	8,134
Deferred rent expense	5,878	5,713
Accrued interest expense	7,914	7,015
Other	13,482	20,563
Total other accrued liabilities	$ 131,044	$ 134,127