Contractual interest rate for funds borrowed, under the debt agreement.

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Long-Term Debt - Schedule of long term debt (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2021	Nov. 30, 2019
Debt Instrument [Line Items]
Long-term debt, amount	$ 1,269,048	$ 1,275,289
Current portion	26,140	26,136
Non-current portion	1,242,908	1,249,153
Total	1,269,048	1,275,289
Term loan
Debt Instrument [Line Items]
Long-term debt, amount	521,845	528,378
Total	521,845	528,378
2019 Senior notes
Debt Instrument [Line Items]
Long-term debt, amount	399,025	398,881
Total	399,025	398,881
2021 Senior notes
Debt Instrument [Line Items]
Long-term debt, amount	348,178	348,030
Total	348,178	348,030
Genpact Luxembourg S.r.l. \| 2019 Senior notes
Debt Instrument [Line Items]
Long-term debt, amount	399,025	398,881
Total	$ 399,025	398,881
Interest rate on senior notes (in percentage)	3.375%			3.375%
Genpact Luxembourg S.r.l. \| 2021 Senior notes
Debt Instrument [Line Items]
Long-term debt, amount	$ 348,178	348,030
Total	$ 348,178	$ 348,030
Interest rate on senior notes (in percentage)	1.75%		1.75%