Accrued Expenses and Other Current Liabilities - Tabular Disclosure (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Accrued Expenses and Other Current Liabilities
Salaries and benefits	$ 17,827	$ 25,884
Professional fees	1,407	1,213
Accrued interest	873	971
Repurchasable Stock		882
Other	10,710	9,351
Total accrued expenses and other current liabilities	$ 30,817	$ 38,301