Debt (Details) - USD ($) $ in Thousands	Apr. 01, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Total current portion of long-term debt	$ 7,395	$ 7,385
Total long-term debt	86,763	88,426
Total Senior Credit Facilities	94,158	95,811
Term Loans
Debt Instrument [Line Items]
Current portion of long-term debt, Gross	7,500	7,500
Total current portion of long-term debt	7,500
Long-term debt, Gross	18,125	20,000
Term Loan And Revolving Credit Facility
Debt Instrument [Line Items]
Less: unamortized debt issuance costs	(105)	(115)
Less: unamortized debt issuance costs	(1,362)	(1,574)
Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, Gross	$ 70,000	$ 70,000