v3.26.1
Restatement of Previously Issued Consolidated Financial Statements - Restated Consolidated Balance Sheets (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Current assets:        
Cash and cash equivalents $ 647,295 $ 538,785 $ 378,102  
Available for sale investments 0 0 1,954  
Accounts receivable, net of allowance for credit losses (1,474,898) (1,392,764) (1,764,404)  
Unbilled revenue (Unbilled services) 1,096,592 1,040,174 853,581  
Other receivables 116,750 79,487 65,797  
Prepayments and other current assets 105,316 140,435 132,105  
Income taxes receivable 60,824 83,523 91,254  
Total current assets 3,501,675 3,275,168 3,287,197  
Non-current assets:        
Property, plant and equipment (net) 395,724 382,879 361,184  
Goodwill 8,731,689 9,051,410 9,022,075 $ 8,971,670
Intangible assets, net 3,247,118 3,559,792 3,855,865  
Operating right-of-use assets 128,948 147,602 140,333  
Other receivables 75,707 72,796 78,470  
Income taxes receivable 0 11,395 0  
Deferred tax asset 106,871 75,832 72,855  
Investments in equity 82,050 57,948 46,804  
Total Assets 16,269,782 16,634,822 16,864,783  
Current liabilities:        
Accounts payable 192,117 173,025 131,584  
Unearned revenue 1,550,471 1,467,671 1,566,464  
Other liabilities 904,826 909,776 908,151  
Income taxes payable 18,999 55,258 13,968  
Current bank credit lines, loan facilities and notes 529,762 29,762 110,150  
Total current liabilities 3,196,175 2,635,492 2,730,317  
Non-current liabilities:        
Non-current bank credit lines, loan facilities and notes, net 2,872,616 3,396,398 3,665,439  
Lease liabilities 117,122 140,085 126,321  
Non-current other liabilities 72,807 82,718 45,246  
Non-current income taxes payable 103,251 127,544 187,706  
Deferred tax liability 714,427 811,231 898,308  
Commitments and contingencies 0 0 0  
Total Liabilities 7,076,398 7,193,468 7,653,337  
Shareholders' Equity:        
76,567,325 shares issued and outstanding at December 31, 2025, (2024: 80,756,860 and 2023: 82,495,086) 6,305 6,586 6,699  
Additional paid-in capital 7,131,956 7,020,231 6,942,669  
Other undenominated capital 1,606 1,304 1,162  
Accumulated other comprehensive loss (68,534) (229,929) (143,506)  
Retained earnings 2,122,051 2,643,162 2,404,422  
Total Shareholders' Equity 9,193,384 9,441,354 9,211,446 $ 8,526,793
Total Liabilities and Shareholders’ Equity $ 16,269,782 $ 16,634,822 $ 16,864,783  
Ordinary shares, shares issued (in shares) 76,567,325 80,756,860 82,495,086  
Ordinary shares, shares outstanding (in shares) 76,567,325 80,756,860 82,495,086  
As Reported        
Current assets:        
Cash and cash equivalents   $ 538,785 $ 378,102  
Available for sale investments   0 1,954  
Accounts receivable, net of allowance for credit losses   (1,401,989) (1,790,322)  
Unbilled revenue (Unbilled services)   1,286,274 951,936  
Other receivables   79,487 65,797  
Prepayments and other current assets   140,435 132,105  
Income taxes receivable   83,523 91,254  
Total current assets   3,530,493 3,411,470  
Non-current assets:        
Property, plant and equipment (net)   382,879 361,184  
Goodwill   9,051,410 9,022,075  
Intangible assets, net   3,559,792 3,855,865  
Operating right-of-use assets   147,602 140,333  
Other receivables   72,796 78,470  
Income taxes receivable   0 0  
Deferred tax asset   74,758 73,662  
Investments in equity   57,948 46,804  
Total Assets   16,877,678 16,989,863  
Current liabilities:        
Accounts payable   173,025 131,584  
Unearned revenue   1,614,758 1,654,507  
Other liabilities   923,603 915,399  
Income taxes payable   55,258 13,968  
Current bank credit lines, loan facilities and notes   29,762 110,150  
Total current liabilities   2,796,406 2,825,608  
Non-current liabilities:        
Non-current bank credit lines, loan facilities and notes, net   3,396,398 3,665,439  
Lease liabilities   140,085 126,321  
Non-current other liabilities   83,470 45,998  
Non-current income taxes payable   125,834 186,654  
Deferred tax liability   812,486 899,100  
Commitments and contingencies   0 0  
Total Liabilities   7,354,679 7,749,120  
Shareholders' Equity:        
76,567,325 shares issued and outstanding at December 31, 2025, (2024: 80,756,860 and 2023: 82,495,086)   6,586 6,699  
Additional paid-in capital   7,020,231 6,942,669  
Other undenominated capital   1,304 1,162  
Accumulated other comprehensive loss   (229,929) (143,506)  
Retained earnings   2,724,807 2,433,719  
Total Shareholders' Equity   9,522,999 9,240,743  
Total Liabilities and Shareholders’ Equity   16,877,678 16,989,863  
Adjustments        
Current assets:        
Cash and cash equivalents   0 0  
Available for sale investments   0 0  
Accounts receivable, net of allowance for credit losses   9,225 25,918  
Unbilled revenue (Unbilled services)   (246,100) (98,355)  
Other receivables   0 0  
Prepayments and other current assets   0 0  
Income taxes receivable   0 0  
Total current assets   (255,325) (124,273)  
Non-current assets:        
Property, plant and equipment (net)   0 0  
Goodwill   0 0  
Intangible assets, net   0 0  
Operating right-of-use assets   0 0  
Other receivables   0 0  
Income taxes receivable   11,395 0  
Deferred tax asset   1,074 (807)  
Investments in equity   0 0  
Total Assets   (242,856) (125,080)  
Current liabilities:        
Accounts payable   0 0  
Unearned revenue   (147,087) (88,043)  
Other liabilities   (13,827) (7,248)  
Income taxes payable   0 0  
Current bank credit lines, loan facilities and notes   0 0  
Total current liabilities   (160,914) (95,291)  
Non-current liabilities:        
Non-current bank credit lines, loan facilities and notes, net   0 0  
Lease liabilities   0 0  
Non-current other liabilities   (752) (752)  
Non-current income taxes payable   1,710 1,052  
Deferred tax liability   (1,255) (792)  
Commitments and contingencies   0 0  
Total Liabilities   (161,211) (95,783)  
Shareholders' Equity:        
76,567,325 shares issued and outstanding at December 31, 2025, (2024: 80,756,860 and 2023: 82,495,086)   0 0  
Additional paid-in capital   0 0  
Other undenominated capital   0 0  
Accumulated other comprehensive loss   0 0  
Retained earnings   (81,645) (29,297)  
Total Shareholders' Equity   (81,645) (29,297)  
Total Liabilities and Shareholders’ Equity   $ (242,856) $ (125,080)