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Details of Selected Balance Sheet Accounts - Activity in Allowance for Doubtful Accounts (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]    
Allowance for doubtful accounts beginning balance $ 4,471 $ 8,304
Provisions 943 214
Write-offs (635) (116)
Other 0 143
Allowance for doubtful accounts ending balance $ 4,779 $ 8,545