Accounts Payable and Other Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Payables and Accruals [Abstract]

Schedule of Accounts Payable and Accrued Liabilities

Accounts payable and other accrued liabilities consisted of the following (in thousands):

	DECEMBER 31,
	2017		2016
Accounts payable	$	21,591	$	20,321
Accrued liabilities	13,282		16,909
Total Accounts payable and other accrued liabilities	$	34,873	$	37,230