Derivative Financial Instruments (The location and effect of the derivative instrument on the condensed consolidated statement of operations, pre-tax basis) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)
Derivative Instruments, (Gain) Loss [Line Items]
Amount of (gain) loss recognized	$ (2,707)
Interest Rate Swap [Member] | Interest Expense, Net [Member]
Derivative Instruments, (Gain) Loss [Line Items]
Amount of (gain) loss recognized	(5,197)
Hedged Item Debt [Member] | Interest Expense, Net [Member]
Derivative Instruments, (Gain) Loss [Line Items]
Amount of (gain) loss recognized	$ 2,490