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Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Aug. 11, 2023 | Dec. 31, 2022 | Sep. 28, 2022
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Percentage of restricted cash balance (as a percent) |  |  |  |  |  | 75.00% |  | 25.00%
Allowance for doubtful accounts | $ 2,268 |  |  | $ 2,268 |  |  | $ 2,125 |
Capitalized contract cost, amortization period (in years) | 5 years |  |  | 5 years |  |  |  |
Commission expense | $ 11,300 | $ 9,500 |  | $ 33,500 | $ 26,500 |  |  |
Severance costs |  |  | $ 6,300 |  |  |  |  |
Sales Revenue, Net | Customer Concentration Risk | Government Agencies |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Concentration risk percentage | 21.10% | 21.20% |  | 20.60% | 19.20% |  |  |
Sales Revenue, Net | Customer Concentration Risk | Federal Government Agencies |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Concentration risk percentage | 4.60% | 5.50% |  | 4.30% | 4.80% |  |  |
Sales Revenue, Net | Customer Concentration Risk | Foreign Customers |  |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |
Concentration risk percentage | 35.30% | 31.30% |  | 35.60% | 33.20% |  |  |

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