Cover - shares	9 Months Ended
	Sep. 30, 2023	Nov. 02, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	001-33626
Entity Registrant Name	GENPACT LIMITED
Entity Incorporation, State or Country Code	D0
Entity Tax Identification Number	98-0533350
Entity Address, Address Line One	Canon's Court
Entity Address, Address Line Two	22 Victoria Street
Entity Address, City or Town	Hamilton
Entity Address, Postal Zip Code	HM 12
Entity Address, Country	BM
City Area Code	441
Local Phone Number	298-3300
Title of 12(b) Security	Common shares, par value $0.01 per share
Trading Symbol	G
Security Exchange Name	NYSE
Entity Interactive Data Current	Yes
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		181,412,399
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001398659
Current Fiscal Year End Date	--12-31