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Revenue - Additional Information (Detail) | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) Category | Sep. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2022 USD ($)
Revenue [Line Items] |  |  |  |  |  |  |
Number of categories | Category |  |  |  | 3 |  |  |
Accounts receivable, net |  | $ 229,333,000 |  | $ 229,333,000 |  |  | $ 279,435,000
Accounts receivable, allowance for credit losses |  | 15,000 |  | 15,000 |  |  | 49,000
Allowance for credit losses related to contract assets |  | 0 | $ 0 |  |  |  |
Contract assets | [1] | 888,000 |  | 888,000 |  |  | 1,852,000
Recognized revenue |  | 6,100,000 | $ 2,800,000 | 31,300,000 | $ 12,300,000 | $ 17,700,000 |
Factor [Member] | Purchase Agreement [Member] |  |  |  |  |  |  |
Revenue [Line Items] |  |  |  |  |  |  |
Accounts receivable sold |  | 17,800,000 |  | 17,800,000 |  |  | 14,900,000
Factor [Member] | Purchase Agreement [Member] | Interest expense [Member] |  |  |  |  |  |  |
Revenue [Line Items] |  |  |  |  |  |  |
Cost of receivables |  | 300,000 |  | 900,000 |  |  |
Factor [Member] | Purchase Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |
Revenue [Line Items] |  |  |  |  |  |  |
Accounts receivable, allowance for credit losses |  | 100,000 |  | 100,000 |  |  | 100,000
Factor [Member] | Purchase Agreement [Member] | Other Assets [Member] |  |  |  |  |  |  |
Revenue [Line Items] |  |  |  |  |  |  |
Accounts receivable gross |  | 1,400,000 |  | 1,400,000 |  |  |
Contractual Maintenance Agreements, Contractual SaaS and Subscription Services and Hardware Orders [Member] |  |  |  |  |  |  |
Revenue [Line Items] |  |  |  |  |  |  |
Remaining performance obligations |  | $ 314,000,000 |  | $ 314,000,000 |  |  | $ 277,200,000
[1] | Included in other receivables on the Condensed Consolidated Balance Sheets.

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