Credit Facilities and Long-Term Debt - Summary of Credit Facilities and Long-Term Debt (Details) - USD ($) $ in Thousands		12 Months Ended
	Jul. 22, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Total outstanding debt		$ 66,197	$ 44,555
Total noncurrent portion of long-term debt		28,930	5,769
Interest expense		3,500	6,000	$ 5,600
Amortization of deferred financing costs		360	2,621	$ 1,556
Write off of Deferred Debt Issuance Costs			2,200
Financing costs	$ 4,100
Fair value of warrants	$ 2,000
Revolving credit facilities | Revolving credit facility, maturing March 2019
Debt Instrument [Line Items]
Total outstanding debt		32,453	36,863
Current maturities of outstanding debt		(32,453)	(36,863)
Term loans
Debt Instrument [Line Items]
Total outstanding debt		18,379	7,692
Current maturities of outstanding debt		(4,814)	(1,923)
Subordinated Debt
Debt Instrument [Line Items]
Total outstanding debt		$ 15,365	$ 0