v3.24.1.1.u2
IMMATERIAL FINANCIAL RESTATEMENT AND RECLASSIFICATIONS TO PRIOR PERIOD FINANCIAL STATEMENTS - Balance Sheets (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Current assets:              
Cash and cash equivalents $ 92.8 $ 108.6          
Accounts receivable and unbilled services, net 941.0 988.5          
Prepaid expenses and other 91.3 84.6          
Current assets of discontinued operations 74.9 69.1          
Total current assets 1,200.0 1,250.8          
Property, plant and equipment, net 167.4 172.6          
Goodwill, net 1,727.6 1,739.4     $ 1,719.9 $ 1,707.4  
Intangible assets, net 707.9 728.1          
Deferred income taxes 3.2 3.2          
Other assets, net 89.0 69.7          
Long-term assets of discontinued operations 345.1 368.8          
Total assets 4,240.2 4,332.6          
Current liabilities:              
Accounts payable 131.3 132.9          
Accrued expenses and other current liabilities 328.7 335.5          
Unearned revenue 236.9 214.2          
Current portion of long-term debt 55.0 26.1          
Short-term operating lease liabilities 15.2 17.2          
Current liabilities of discontinued operations 51.2 52.5          
Total current liabilities 818.3 778.4          
Long-term debt, less current portion 1,559.4 1,565.9          
Operating lease liabilities 59.5 62.8          
Deferred income taxes and other tax liabilities 150.7 147.7          
Other liabilities 28.9 32.1          
Long-term liabilities of discontinued operations 31.5 31.6          
Total liabilities 2,648.3 2,618.5          
Commitments and contingent liabilities (Note 9)          
Equity              
Former parent investment   0.0          
Common stock 0.1 0.1          
Additional paid-in capital 2,002.9 1,998.0          
Accumulated deficit (169.5) (68.5)          
Accumulated other comprehensive loss (241.6) (215.5)          
Total equity 1,591.9 1,714.1 $ 1,690.5 $ 1,747.8 3,402.8 3,340.0 $ 3,261.4
Total liabilities and equity $ 4,240.2 4,332.6          
As Previously Reported              
Current assets:              
Cash and cash equivalents   108.6          
Accounts receivable and unbilled services, net   1,052.1          
Prepaid expenses and other   92.4          
Current assets of discontinued operations   0.0          
Total current assets   1,253.1          
Property, plant and equipment, net   220.9          
Goodwill, net   2,029.3          
Intangible assets, net   771.2          
Deferred income taxes   3.2          
Other assets, net   79.5          
Long-term assets of discontinued operations   0.0          
Total assets   4,357.2          
Current liabilities:              
Accounts payable   132.8          
Accrued expenses and other current liabilities   356.1          
Unearned revenue   241.4          
Current portion of long-term debt   26.1          
Short-term operating lease liabilities   19.5          
Current liabilities of discontinued operations   0.0          
Total current liabilities   775.9          
Long-term debt, less current portion   1,565.9          
Operating lease liabilities   66.5          
Deferred income taxes and other tax liabilities   148.8          
Other liabilities   61.3          
Long-term liabilities of discontinued operations   0.0          
Total liabilities   2,618.4          
Commitments and contingent liabilities (Note 9)            
Equity              
Former parent investment   0.0          
Common stock   0.1          
Additional paid-in capital   2,006.2          
Accumulated deficit   (49.1)          
Accumulated other comprehensive loss   (218.4)          
Total equity   1,738.8 1,694.3 1,751.1 3,405.5 3,342.6 3,260.6
Total liabilities and equity   4,357.2          
Adjustments              
Current assets:              
Cash and cash equivalents   0.0          
Accounts receivable and unbilled services, net   (3.2)          
Prepaid expenses and other   0.9          
Current assets of discontinued operations   0.0          
Total current assets   (2.3)          
Property, plant and equipment, net   (7.7)          
Goodwill, net   (13.4)          
Intangible assets, net   0.0          
Deferred income taxes   0.0          
Other assets, net   (1.2)          
Long-term assets of discontinued operations   0.0          
Total assets   (24.6)          
Current liabilities:              
Accounts payable   4.6          
Accrued expenses and other current liabilities   (3.3)          
Unearned revenue   1.2          
Current portion of long-term debt   0.0          
Short-term operating lease liabilities   0.0          
Current liabilities of discontinued operations   0.0          
Total current liabilities   2.5          
Long-term debt, less current portion   0.0          
Operating lease liabilities   0.0          
Deferred income taxes and other tax liabilities   (1.1)          
Other liabilities   (1.3)          
Long-term liabilities of discontinued operations   0.0          
Total liabilities   0.1          
Commitments and contingent liabilities (Note 9)            
Equity              
Former parent investment   0.0          
Common stock   0.0          
Additional paid-in capital   (8.2)          
Accumulated deficit   (19.4)          
Accumulated other comprehensive loss   2.9          
Total equity   (24.7) $ (3.8) $ (3.3) $ (2.7) $ (2.6) $ 0.8
Total liabilities and equity   (24.6)          
As Restated              
Current assets:              
Cash and cash equivalents   108.6          
Accounts receivable and unbilled services, net   1,048.9          
Prepaid expenses and other   93.3          
Current assets of discontinued operations   0.0          
Total current assets   1,250.8          
Property, plant and equipment, net   213.2          
Goodwill, net   2,015.9          
Intangible assets, net   771.2          
Deferred income taxes   3.2          
Other assets, net   78.3          
Long-term assets of discontinued operations   0.0          
Total assets   4,332.6          
Current liabilities:              
Accounts payable   137.4          
Accrued expenses and other current liabilities   352.8          
Unearned revenue   242.6          
Current portion of long-term debt   26.1          
Short-term operating lease liabilities   19.5          
Current liabilities of discontinued operations   0.0          
Total current liabilities   778.4          
Long-term debt, less current portion   1,565.9          
Operating lease liabilities   66.5          
Deferred income taxes and other tax liabilities   147.7          
Other liabilities   60.0          
Long-term liabilities of discontinued operations   0.0          
Total liabilities   2,618.5          
Commitments and contingent liabilities (Note 9)            
Equity              
Former parent investment   0.0          
Common stock   0.1          
Additional paid-in capital   1,998.0          
Accumulated deficit   (68.5)          
Accumulated other comprehensive loss   (215.5)          
Total equity   1,714.1          
Total liabilities and equity   4,332.6          
Reclassifications | Discontinued Operations Reclassifications              
Current assets:              
Cash and cash equivalents   0.0          
Accounts receivable and unbilled services, net   (60.4)          
Prepaid expenses and other   (8.7)          
Current assets of discontinued operations   69.1          
Total current assets   0.0          
Property, plant and equipment, net   (40.6)          
Goodwill, net   (276.5)          
Intangible assets, net   (43.1)          
Deferred income taxes   0.0          
Other assets, net   (8.6)          
Long-term assets of discontinued operations   368.8          
Total assets   0.0          
Current liabilities:              
Accounts payable   (4.5)          
Accrued expenses and other current liabilities   (17.3)          
Unearned revenue   (28.4)          
Current portion of long-term debt   0.0          
Short-term operating lease liabilities   (2.3)          
Current liabilities of discontinued operations   52.5          
Total current liabilities   0.0          
Long-term debt, less current portion   0.0          
Operating lease liabilities   (3.7)          
Deferred income taxes and other tax liabilities   0.0          
Other liabilities   (27.9)          
Long-term liabilities of discontinued operations   31.6          
Total liabilities   0.0          
Commitments and contingent liabilities (Note 9)            
Equity              
Former parent investment   0.0          
Common stock   0.0          
Additional paid-in capital   0.0          
Accumulated deficit   0.0          
Accumulated other comprehensive loss   0.0          
Total equity   0.0          
Total liabilities and equity   $ 0.0