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Supplemental Cash Flow and Other Information - Cash, Cash Equivalents and Restricted Cash (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 $ 24,088 $ 24,197 $ 48,672  
Restricted cash (included in other current assets) 5,401 6,151 8,191  
Cash, cash equivalents, and restricted cash $ 29,489 $ 30,348 $ 56,863 $ 64,266