CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenues, net		$ 400,643	$ 329,208
Cost of revenues	[1]	251,469	207,516
Gross profit	[1]	149,174	121,692
Operating expenses:
General and administrative expenses		46,746	39,945
Selling and marketing expenses		29,493	24,170
Depreciation and amortization expense		13,487	13,602
Total operating expenses		89,726	77,717
Income from operations		59,448	43,975
Foreign exchange gain, net		105	1,756
Interest expense		(3,385)	(876)
Other income, net		3,155	2,411
Income before income tax expense and earnings from equity affiliates		59,323	47,266
Income tax expense		8,058	11,202
Income before earnings from equity affiliates		51,265	36,064
Gain from equity-method investment		66	114
Net income attributable to ExlService Holdings, Inc. stockholders		$ 51,331	$ 36,178
Earnings per share attributable to ExlService Holdings, Inc. stockholders:
Basic (in dollars per share)		$ 1.54	$ 1.08
Diluted (in dollars per share)		$ 1.51	$ 1.07
Weighted average number of shares used in computing earnings per share attributable to ExlService Holdings, Inc. stockholders:
Basic (in shares)		33,439,564	33,442,038
Diluted (in shares)		33,931,480	33,894,868

[1] Exclusive of depreciation and amortization expense.