Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Amount of borrowings, subject to swaps		$ 150,000
Underlying treasury rate term (in years)		10 years
Underlying treasury rate locked by forward-starting swaps (in hundredths)		1.90%
Expected increase to interest expense	$ 4,000			$ 4,000
Derivatives designated as cash flow hedges in accounts payable, accrued expenses and other liabilities [Abstract]
Interest rate swaps	11,049			11,049		$ 3,073
Amount of unrealized gains/(losses) recognized in AOCL on derivatives (effective portion) [Abstract]
Interest rate swaps	(5,760)		$ 269	(9,395)	$ (2,645)
Amount of losses reclassified out of AOCL into contractual interest expense (effective portion) [Abstract]
Interest rate swaps	$ 783		$ 925	$ 1,578	$ 1,849