Restructuring and Other Charges (Details Textual) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring charge		$ 5,000	$ 9,000	$ 2,000
Restructuring charges		5,074	8,830	2,387
Goodwill and intangible asset impairment	$ 2,000
Proceeds from divestiture of businesses		2,000
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 5,074	$ 8,830	$ 2,387
CRSAL | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 3,000