CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenues, net		$ 1,630,668	$ 1,412,044	$ 1,122,293
Cost of revenues	[1]	1,022,902	896,595	690,934
Gross profit	[1]	607,766	515,449	431,359
Operating expenses:
General and administrative expenses		198,294	169,016	142,040
Selling and marketing expenses		120,227	97,989	84,306
Depreciation and amortization expense		50,490	56,282	49,132
Total operating expenses		369,011	323,287	275,478
Income from operations		238,755	192,162	155,881
Foreign exchange gain, net		1,532	6,199	4,313
Interest expense		(13,180)	(8,252)	(7,561)
Other income/(expense), net		10,834	(10)	6,773
Loss on settlement of convertible notes		0	0	(12,845)
Total before tax		237,941	190,099	146,561
Income tax expense		53,536	47,565	31,850
Income before earnings from equity affiliates		184,405	142,534	114,711
Gain from equity-method investment		153	434	47
Net income attributable to ExlService Holdings, Inc. stockholders		$ 184,558	$ 142,968	$ 114,758
Earnings per share attributable to ExlService Holdings, Inc. stockholders:
Basic (in dollars per share)	[2]	$ 1.11	$ 0.86	$ 0.68
Diluted (in dollars per share)	[2]	$ 1.10	$ 0.85	$ 0.67
Weighted average number of shares used in computing earnings per share attributable to ExlService Holdings, Inc. stockholders:
Basic (in shares)	[2]	166,341,213	166,651,585	167,746,375
Diluted (in shares)	[2]	168,161,371	169,169,290	171,222,390

[1] Exclusive of depreciation and amortization expense.

[2] Prior period information has been adjusted to reflect the 5-for-1 forward stock split of the Company’s common stock effected in August 2023. Refer to Note 19 – Capital Structure to the consolidated financial statements for further details.