Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Total current portion of long-term debt	$ 7,366	$ 7,385
Total long-term debt	70,554	88,426
Total Senior Credit Facilities	77,920	95,811
Term Loans
Debt Instrument [Line Items]
Current portion of long-term debt, Gross	7,500	7,500
Long-term debt, Gross	63,750	20,000
Total Senior Credit Facilities	71,250
Term Loan And Revolving Credit Facility
Debt Instrument [Line Items]
Less: unamortized debt issuance costs	(134)	(115)
Less: unamortized debt issuance costs	(3,196)	(1,574)
Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, Gross	$ 10,000	$ 70,000