Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands			12 Months Ended
	Oct. 01, 2015	Oct. 01, 2014	Dec. 31, 2015	Dec. 31, 2014
Goodwill Activity
Beginning balance			$ 73,801	$ 40,818
Currency translation			(678)	(636)
Ending balance			$ 73,123	73,801
Impairment of goodwill	$ 0	$ 0
EFT Source
Goodwill Activity
Acquisition				$ 33,619