Supplemental Cash Flow Information - Schedule of Net Changes in Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Accounts receivable and other long-term assets	$ (5,680)	$ 17,674	$ (2,494)
Derivatives	(638)	1,017	0
Inventory	(3,179)	(2,127)	(78)
Other prepaids	583	547	2,674
Accounts payable and accrued and other long-term liabilities	(1,367)	9,034	15,617
Prepaid tax and taxes receivable and payable	(83,593)	(47,566)	(44,936)
Net changes in assets and liabilities from operating activities	$ (93,874)	$ (21,421)	$ (29,217)