Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Trade	$ 151,747	$ 123,905
Royalties	5,758	3,550
Employee compensation	6,861	8,195
Other	31,147	19,020
Total	$ 195,513	$ 154,670