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Derivative financial instruments - Schedule of Gains or Losses Recognized in Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) recognized in OCI on Derivatives (Effective Portion) | $ (61,945) | $ (24,537) | $ (47,888) | $ (7,146)
Amount of Gain (Loss) reclassified from OCI into Statement of Income (Effective Portion) | (4,202) | 2,696 | (10,123) | 9,241
Amount of Gain (Loss) recognized in Statement of Income on Derivatives | (21,770) | (3,473) | (13,294) | (3,908)
Revenue |  |  |  |
Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) reclassified from OCI into Statement of Income (Effective Portion) | (613) | 414 | 231 | 1,326
Cost of revenue |  |  |  |
Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) reclassified from OCI into Statement of Income (Effective Portion) | (3,052) | 1,569 | (8,771) | 5,617
Selling, general and administrative expenses |  |  |  |
Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) reclassified from OCI into Statement of Income (Effective Portion) | (430) | 214 | (1,252) | 1,054
Interest expense |  |  |  |
Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) reclassified from OCI into Statement of Income (Effective Portion) | (107) | 499 | (331) | 1,244
Forward foreign exchange contracts |  |  |  |
Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) recognized in OCI on Derivatives (Effective Portion) | (62,013) | (22,556) | (45,461) | (7,666)
Forward foreign exchange contracts | Foreign exchange gains (losses), net | Non-designated |  |  |  |
Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) recognized in Statement of Income on Derivatives | (21,770) | (3,473) | (13,294) | (3,908)
Interest rate swaps |  |  |  |
Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) recognized in OCI on Derivatives (Effective Portion) | 68 | (1,981) | (2,427) | 917
Treasury rate lock |  |  |  |
Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Amount of Gain (Loss) recognized in OCI on Derivatives (Effective Portion) | $ 0 | $ 0 | $ 0 | $ (397)

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- Definition Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC + Details
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- Definition Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 182 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-182 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-11 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480627/815-20-45-3 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A + Details
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