Acquisition Acquisition (Details) - USD ($) $ in Thousands		12 Months Ended
	Apr. 01, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Acquisition of business, net of cash acquired		$ 18,093	$ 0	$ 0
Goodwill		$ 13,737	$ 6,680	$ 6,680
Advantage Industrial Automation [Member]
Business Acquisition [Line Items]
Percentage of Voting Interests Acquired	100.00%
Acquisition of business, net of cash acquired	$ 18,093
Goodwill	7,057
Other Intangible Assets	$ 8,283