Fair Value Measurement - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Balance Sheet Grouping
Derivative, (Gain) Loss on Derivative, Net				$ 400
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months			$ 500
Net unrealized gain (loss) on cash flow hedge	$ 382	$ 0	(1,016)	0
Less: reclassification for net losses included in interest expense	126	0	226	0
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Balance Sheet Grouping
Derivative, (Gain) Loss on Derivative, Net	600	(1,200)	(1,000)	(2,500)
Level 2
Balance Sheet Grouping
Derivative Asset	1,100	2,100	1,100	2,100	$ 600
Derivative Liability	$ 1,300	$ 700	$ 1,300	$ 700