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v3.24.1.1.u2

Long-Term Debt - Narrative (Detail) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 31, 2018 | Mar. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2021 | Nov. 30, 2019
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 |  | $ 1,244,095,000 | $ 1,256,962,000 |  |  |
Term loan |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt amortization expense |  | 1,170,000 | 1,258,000 |  |  |
Long-term debt, amount |  | 495,705,000 | $ 508,867,000 |  |  |
Principal amount of term loan |  | $ 6,625,000 |  |  |  |
2022 facility | Minimum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Term SOFR adjustment (in percentage) |  | 0.00% | 0.00% |  |  |
2022 facility | Maximum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Term SOFR adjustment (in percentage) |  | 0.10% | 0.10% |  |  |
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% |  |  |
2019 Senior notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, amount |  | $ 399,609,000 | $ 399,464,000 |  |  |
2019 Senior notes | Genpact Luxembourg S.r.l. |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  | $ 400,000,000
Debt amortization expense |  | 391,000 | 536,000 |  |  |
Long-term debt, amount |  | $ 399,609,000 | 399,464,000 |  |  |
Interest rate on senior notes (in percentage) |  | 3.375% |  |  |  | 3.375%
Total debt issuance cost |  |  |  |  |  | $ 2,937,000
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% |  |
2021 Senior notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, amount |  | $ 348,781,000 | 348,631,000 |  |  |
2021 Senior notes | Genpact Luxembourg S.r.l. |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  | $ 350,000,000 |
Debt amortization expense |  | 1,219,000 | 1,369,000 |  |  |
Long-term debt, amount |  | $ 348,781,000 | $ 348,631,000 |  |  |
Interest rate on senior notes (in percentage) |  | 1.75% |  |  | 1.75% |
Total debt issuance cost |  |  |  |  | $ 3,032,000 |

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