Acquisition - Narrative (Details) - USD ($) $ in Thousands		9 Months Ended
	Aug. 11, 2015	Sep. 30, 2015	Sep. 30, 2014
Business Acquisition [Line Items]
Cash paid, net of cash acquired		$ 13,269	$ 0
Maxxton Holding B.V. (“MHB”) [Member]
Business Acquisition [Line Items]
Voting equity interest acquired (percent)	100.00%
Total consideration for acquisition	$ 23,600
Cash paid, net of cash acquired	13,269
Deferred purchase price payable	(6,813)
Liabilities assumed	$ (3,528)
Deferred purchase price payment period	5 years
Variable compensation arrangement term	5 years
Total expected compensation under variable compensation arrangement	$ 13,600