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Summary of Significant Accounting Policies - Allowance for credit losses (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Allowance for credit loss roll forward            
Balance at beginning of period $ 2,392 $ 3,666 $ 3,749 $ 3,977 $ 3,977 $ 606
Charged to selling, general and administrative expense 364 19 1,286 119 439 4,452
Write-offs and adjustments         (667) (1,081)
Write-offs (9) (119) (2,288) (530)    
Total $ 2,747 $ 3,566 $ 2,747 $ 3,566 $ 3,749 $ 3,977