Cumulative Other Comprehensive Income (Loss) - Schedule of Reclassifications Out of Cumulative Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Reclassifications out of cumulative other comprehensive income (loss)
Interest expense	$ 11,510	$ 21,427	$ 41,387	$ 65,074
Amounts Reclassified from Cumulative Other Comprehensive Income (Loss) to Net Income | Interest rate cap contract
Reclassifications out of cumulative other comprehensive income (loss)
Interest expense	$ 13		$ 20