v3.26.3
Segment Information - Schedule of Revenues and Cost of Revenues for Company's Reportable Segments (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Revenues and cost of revenues for Company's reportable segments [Line Items]        
Revenues, net $ 633,959 $ 529,585 $ 1,799,073 $ 1,545,064
Cost of revenues        
Employee costs 318,134 274,444 906,814 805,168
Infrastructure and technology costs 46,530 36,697 131,454 106,119
Other costs 28,160 14,508 71,626 42,339
Gross profit [1] 241,135 203,936 689,179 591,438
Operating expenses 152,279 127,762 421,202 355,711
Income from operations 88,856 76,174 267,977 235,727
Foreign exchange gain, net, interest expense and other income, net (2,195) (1,477) (5,949) 3,874
Income before income tax expense and earnings from equity affiliates 86,661 74,697 262,028 239,601
North America        
Revenues and cost of revenues for Company's reportable segments [Line Items]        
Revenues, net 521,328 436,865 1,484,064 1,275,036
Rest of World        
Revenues and cost of revenues for Company's reportable segments [Line Items]        
Revenues, net 17,382 13,740 47,839 41,029
Data and AI-Led        
Revenues and cost of revenues for Company's reportable segments [Line Items]        
Revenues, net 406,886 298,470 1,111,066 845,169
Digital operations        
Revenues and cost of revenues for Company's reportable segments [Line Items]        
Revenues, net 227,073 231,115 688,007 699,895
Insurance        
Revenues and cost of revenues for Company's reportable segments [Line Items]        
Revenues, net 246,402 211,147 706,163 614,730
Insurance | North America        
Revenues and cost of revenues for Company's reportable segments [Line Items]        
Revenues, net 208,493 180,547 600,206 524,777
Cost of revenues        
Employee costs 108,719 96,661 314,640 282,580
Infrastructure and technology costs 15,853 13,670 46,400 40,296
Other costs 8,521 4,080 22,244 13,010
Gross profit 75,400 66,136 216,922 188,891
Healthcare and Life Sciences        
Revenues and cost of revenues for Company's reportable segments [Line Items]        
Revenues, net 160,914 135,503 471,286 391,066
Healthcare and Life Sciences | North America        
Revenues and cost of revenues for Company's reportable segments [Line Items]        
Revenues, net 160,399 135,271 470,287 390,352
Cost of revenues        
Employee costs 69,689 63,561 203,517 183,457
Infrastructure and technology costs 9,134 7,490 26,224 21,295
Other costs 9,007 5,999 25,120 15,915
Gross profit 72,569 58,221 215,426 169,685
Banking, Capital Markets and Diversified Industries        
Revenues and cost of revenues for Company's reportable segments [Line Items]        
Revenues, net 226,643 182,935 621,624 539,268
Banking, Capital Markets and Diversified Industries | North America        
Revenues and cost of revenues for Company's reportable segments [Line Items]        
Revenues, net 153,482 120,996 414,731 359,787
Cost of revenues        
Employee costs 83,159 65,116 225,791 195,568
Infrastructure and technology costs 10,089 6,617 26,154 19,153
Other costs 7,444 2,908 16,390 9,039
Gross profit 52,790 46,355 146,396 136,027
International Growth Markets | Rest of World        
Revenues and cost of revenues for Company's reportable segments [Line Items]        
Revenues, net 111,585 92,771 313,849 270,148
Cost of revenues        
Employee costs 56,567 49,106 162,866 143,563
Infrastructure and technology costs 11,454 8,920 32,676 25,375
Other costs 3,188 1,521 7,872 4,375
Gross profit $ 40,376 $ 33,224 $ 110,435 $ 96,835
[1] Exclusive of depreciation and amortization expense.