Long-Term Debt - Other (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Charge to accelerate deferred financing costs	$ 5,664	$ 4,870	$ 5,187
Loss on early extinguishment of debt	0	0	12,100
Deferred financing costs	$ 1,737	$ 3,586	10,954
Former Term Loan [Member]
Debt Instrument [Line Items]
Charge to accelerate deferred financing costs			3,500
Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Charge to accelerate deferred financing costs			2,100
Loss on early extinguishment of debt			8,600
Call premium			$ 6,500