Debt and Other Long-Term Liabilities (Schedule of Maturities of Long-term Debt) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Line of Credit Facility [Line Items]
Total	$ 844,688	$ 956,250
Credit Facility | Term Loans
Line of Credit Facility [Line Items]
Remainder of 2015	2,813
2016	13,125
2017	15,000
2018	18,750
2019	90,000
Total	$ 139,688	$ 146,250