Long-Term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Principal, Total long-term debt	$ 175,775	$ 174,125
Discount and Deferred Financing Costs net, Total long-term debt	10,114	9,682
Balance, net of discount, Total long-term debt	165,661	164,443
Principal, Less current portion	1,750	1,750
Discount and Deferred Financing Costs net, Less current portion
Balance, net of discount, less current portion	1,750	1,750
Principal, Total long-term debt, non-current	174,025	172,375
Discount and Deferred Financing Costs net, Total long-term debt, non-current	10,114	9,682
Balance, net of discount, Total long-term debt, non-current	163,911	162,693
Note payable [Member]
Debt Instrument [Line Items]
Principal, Total long-term debt	2,525
Discount and Deferred Financing Costs net, Total long-term debt
Balance, net of discount, Total long-term debt	2,525
Credit Facility [Member]
Debt Instrument [Line Items]
Principal, Total long-term debt	173,250	174,125
Discount and Deferred Financing Costs net, Total long-term debt	10,114	9,682
Balance, net of discount, Total long-term debt	$ 163,136	$ 164,443