Other Current Liabilities - Schedule of Other Current Liabilites (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Other Liabilities Disclosure [Abstract]
Accrued expenses	$ 5,761	$ 6,919
Accrued interest	6,343	18,093
Accrued other	15,301	16,081
Total other current liabilities	$ 27,405	$ 41,093