Summary of Significant Accounting Policies (Details) (USD $)	0 Months Ended	12 Months Ended
	Aug. 14, 2012	Dec. 31, 2014 entities	Dec. 31, 2013	Dec. 31, 2012
Valuation and Qualifying Accounts Disclosure [Line Items]
Number of facilities		35
Number of North American facilities		30
Number of European facilities		5
Business combination, consideration transferred	$ 6,400,000
Trade accounts receivable		77,100,000	69,800,000
Percent likely that a tax benefit recognized		50.00%
Advertising expense		3,100,000	3,100,000	3,300,000
Allowance for Doubtful Accounts
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance, beginning of year		2,235,000	2,751,000	4,391,000
Charges to cost and expenses		35,000	290,000	364,000
Write-offs and other activity		(664,000)	(838,000)	(2,037,000)
Foreign currency translation		84,000	(32,000)	33,000
Balance, end of year		$ 1,522,000	$ 2,235,000	$ 2,751,000