Derivative Financial Instruments - Schedule of Derivatives (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Derivatives
Notional, Amount	$ 326,901	$ 303,639
Fair Value, Asset	259	164
Fair Value, Liability	(829)	(1,082)
Total change in fair value	(941)	(1,304)	$ (233)
Change in fair value of interest rate derivatives	(941)	(229)	(233)
Unrealized gain (loss) on cash flow hedge	0	(1,075)	0
Interest rate swaps
Derivatives
Notional, Amount	56,901	57,093
Fair Value, Asset	0	0
Fair Value, Liability	(829)	(1,082)
Total change in fair value	(795)	(1,071)	5
Interest rate caps
Derivatives
Notional, Amount	270,000	246,546
Fair Value, Asset	259	164
Fair Value, Liability	0	0
Total change in fair value	$ (146)	$ (233)	$ (238)