Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period			$ 126,991
Net other comprehensive income (loss) during period	$ (207)	$ 146	(319)	$ (339)
Balance at end of period	144,692		144,692
Unrealized Gain (Loss) on Available-for-Sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	2	(19)	(16)	(18)
Current period other comprehensive income (loss) before reclassifications	8	14	26	13
Reclassification of amounts to earnings	0		0
Net other comprehensive income (loss) during period	8		26
Balance at end of period	10	(5)	10	(5)
Loss on Derivative Securities (Effective Portion)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(682)		0
Current period other comprehensive income (loss) before reclassifications	(219)		(980)
Reclassification of amounts to earnings	114		193
Net other comprehensive income (loss) during period	(105)		(787)
Balance at end of period	(787)		(787)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(759)	(774)	(1,311)	(290)
Current period other comprehensive income (loss) before reclassifications	(110)	132	442	(352)
Reclassification of amounts to earnings	0		0
Net other comprehensive income (loss) during period	(110)		442
Balance at end of period	(869)	(642)	(869)	(642)
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(1,439)	(793)	(1,327)	(308)
Current period other comprehensive income (loss) before reclassifications	(321)	146	(512)	(339)
Reclassification of amounts to earnings	114		193
Net other comprehensive income (loss) during period	(207)		(319)
Balance at end of period	$ (1,646)	$ (647)	$ (1,646)	$ (647)