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v3.25.2

Long-Term Debt - Narrative (Detail) - USD ($) | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2024 | Mar. 31, 2021
Debt Instrument [Line Items] |  |  |  |
Margin over LIBOR (in percentage) | 1.375% |  |  |
Net debt to EBITDA leverage ratio, covenant line of credit | 300.00% |  |  |
Interest coverage minimum ratio, covenant line of credit | 3 |  |  |
Long-term debt, amount | $ 1,209,087,000 | $ 1,221,440,000 |  |
Term loan |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt amortization expense | 747,000 | 911,000 |  |
Long-term debt, amount | 463,002,000 | 476,089,000 |  |
Principal amount of term loan | $ 6,625,000 |  |  |
2022 facility | Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Term SOFR adjustment (in percentage) | 0.10% |  |  |
2022 facility | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Term SOFR adjustment (in percentage) | 0.00% |  |  |
2022 facility | Line of credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, face amount | $ 650,000,000 |  |  |
2022 facility | Term loan |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, face amount | $ 530,000,000 |  |  |
Amended 2015 facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Margin over LIBOR (in percentage) | 0.20% |  |  |
Credit facility, base rate (in percentage) | 0.375% |  |  |
2021 Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt, amount | $ 349,532,000 | 349,234,000 |  |
2021 Senior notes | Genpact Luxembourg S.r.l. |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, face amount |  |  |  | $ 350,000,000
Debt amortization expense | 468,000 | 766,000 |  |
Long-term debt, amount | $ 349,532,000 | 349,234,000 |  |
Interest rate on senior notes (in percentage) | 1.75% |  |  | 1.75%
Total debt issuance cost |  |  |  | $ 3,032,000
Debt instrument redemption price (in percentage) | 100.00% |  |  |
Debt repurchase price as percentage of aggregate principal value upon certain change of controls (in percentage) | 101.00% |  |  |
Maximum increase in downgrade of credit rating of notes to adjust interest rate payable (in percentage) | 2.00% |  |  |
2024 Senior notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt, amount | $ 396,553,000 | 396,117,000 |  |
2024 Senior notes | Genpact Luxembourg S.r.l. |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest rate on senior notes (in percentage) | 6.00% |  |  |
2024 Senior notes | Genpact Luxembourg and Genpact USA |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, face amount |  |  | $ 400,000,000 |
Debt amortization expense | $ 3,447,000 | 3,883,000 |  |
Long-term debt, amount | $ 396,553,000 | $ 396,117,000 |  |
Interest rate on senior notes (in percentage) |  |  | 6.00% |
Total debt issuance cost |  |  | $ 4,395,000 |
2019 Senior notes | Genpact Luxembourg S.r.l. |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum increase in downgrade of credit rating of notes to adjust interest rate payable (in percentage) | 2.00% |  |  |

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