Supplemental Cash Flow Information - Reconciliation of Cash, Cash Equivalents, and Restricted Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Supplemental Cash Flow Elements [Abstract]
Cash and cash equivalents	$ 26,109	$ 13,687	$ 8,301
Restricted cash and cash equivalents - current	392	427	516
Restricted cash and cash equivalents - long-term	4,903	3,409	2,258
Cash, cash equivalents, restricted cash, and restricted cash equivalents	$ 31,404	$ 17,523	$ 11,075	$ 54,308