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Accounts receivable, net of allowance for credit losses - Narrative (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |  |  |
Gross accounts receivable | $ 1,168,527 |  | $ 1,134,551 |
Allowance for credit losses | 21,294 |  | 18,278 | $ 20,442
Accounts receivable, after allowance for credit loss, current | 1,147,233 |  | 1,116,273 |
Deferred billings | 96,945 |  | 90,094 |
Allowance for credit losses, other assets | 7,174 |  | 4,096 |
Net deferred billings | 89,771 |  | 85,998 |
Allowance for credit losses current period charge | 3,078 | $ 0 |  |
Factoring facility maximum capacity | 75,000 |  | 75,000 |
Factoring facility, maximum capacity utilized | 55,870 |  | 51,367 |
Factoring facility, amount outstanding | 55,870 |  | 51,344 |
Cost of factoring facility | 706 | 461 |  |
Accounts receivable, sale | 47,367 |  | $ 324,401 |
Cost of accounts receivable factoring facility with financial institution | $ 1,175 | $ 1,400 |  |

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