Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Other Liabilities Disclosure [Abstract]
Accrued expenses	$ 5,496	$ 5,080
Accrued interest	152	1,315
Accrued other	18,002	13,584
Total other current liabilities	$ 23,650	$ 19,979