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Accounts receivable, net of allowance for credit losses - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2025 | Dec. 31, 2024
Receivables [Abstract] |  |  |  |  |  |
Gross accounts receivable | $ 1,424,035 |  | $ 1,424,035 |  | $ 1,262,647 |
Allowance for credit losses | 21,220 |  | 21,220 |  | 22,097 | $ 12,094
Accounts receivable, after allowance for credit loss, current | 1,402,815 |  | 1,402,815 |  | 1,240,550 |
Deferred billings | 297,009 |  | 297,009 |  | 232,647 |
Allowance for credit losses, other assets | 13,438 |  | 13,438 |  | 10,659 |
Net deferred billings | 283,571 |  | 283,571 |  | 221,988 |
Allowance for credit losses current period charge | 1,003 | $ 1,989 | 2,779 | $ 541 |  |
Factoring facility maximum capacity | 100,000 |  | 100,000 |  | 100,000 |
Factoring facility, maximum capacity utilized | 79,461 |  | 79,461 |  | 59,952 |
Factoring facility, amount outstanding | 77,081 |  | 77,081 |  | 55,140 |
Cost of factoring facility | 726 | 1,407 | 403 | 1,081 |  |
Accounts receivable, sale |  |  | 147,315 |  | $ 327,207 |
Cost of factoring facility with financial institution | $ 1,143 | $ 2,444 | $ 1,403 | $ 2,579 |  |

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