Derivative Instruments - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Mar. 04, 2016
Derivative [Line Items]
Expense related to an interest rate swap	$ (10,331)	$ (5,989)	$ (1,561)
Cash flow hedging | Designated as hedging instrument
Derivative [Line Items]
Estimated gain (loss) reclassification from OCI to income	(49)
Cash flow hedging | Designated as hedging instrument | Interest rate swap contracts
Derivative [Line Items]
Amount of hedged item	167,800
Expense related to an interest rate swap	200
Cash flow hedging | Designated as hedging instrument | Interest rate cap
Derivative [Line Items]
Derivative, notional amount	$ 400,000			$ 400,000
LIBOR | Interest rate cap
Derivative [Line Items]
Derivative, cap interest rate				2.50%