Supplemental Cash Flow Information - Summary of Cash Paid for Interest and Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash paid for interest and income taxes
Interest	$ 57,475	$ 80,069	$ 79,846
Income taxes	7,808	4,635	$ 40,626
Cash and cash equivalents	200,227	2,287
Restricted cash	$ 13,556	$ 0