Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Fair Value
Transfers between levels	$ 0	$ 0
Level 3
Fair Value
Long-term debt and interest payable	326,500	325,500
2015 Term Loan and interest payable | Level 3 | Senior secured term loan facility | Carrying Amount
Fair Value
Long-term debt and interest payable	324,016	323,675
2015 Term Loan and interest payable | Level 3 | Senior secured term loan facility | Fair Value
Fair Value
Long-term debt and interest payable	326,462	325,500
Interest Rate Swap | Level 2 | Carrying Amount
Fair Value
Long-term debt and interest payable	5,145	735
Interest Rate Swap | Level 2 | Fair Value
Fair Value
Long-term debt and interest payable	$ 5,145	$ 735