Supplemental Cash Flow Information - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Supplemental Cash Flow Elements [Abstract]
Cash and cash equivalents	$ 76,016	$ 78,861	$ 172,680
Restricted cash	42,443	9,848	14,443
Total cash, cash equivalents, and restricted cash	$ 118,459	$ 88,709	$ 187,123	$ 49,450