v3.25.2
Divestitures - Summary of Gain (Loss) on Disposal of OWN Segment and DAS Business Unit and Home business (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jan. 31, 2025
Jan. 09, 2024
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Reclassification of foreign currency translation         $ 97.9 $ 27.4
Gain (loss) on disposal, net of income taxes         869.2 (21.9)
Discontinued Operations, Disposed of by Sale [Member]            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Gain (loss) on disposal before income taxes     $ (0.6) $ 0.0 869.2 (21.9)
Gain (loss) on disposal, net of income taxes   $ 43.4        
Discontinued Operations, Disposed of by Sale [Member] | OWN Segment and DAS Business Unit [Member]            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Cash consideration received (net of cash acquired) $ 2,034.5          
Transaction expense (9.1)          
Fair value of shares issued to seller 0.0          
Total disposal consideration 2,025.4          
Carrying value of net assets sold (1,058.3)          
Gain on disposal before income taxes and reclassification of foreign currency translation 967.1          
Reclassification of foreign currency translation (97.9)          
Gain (loss) on disposal before income taxes 869.2          
Income tax expense (378.7)          
Gain (loss) on disposal, net of income taxes $ 490.5          
Discontinued Operations, Disposed of by Sale [Member] | Home Segment [Member]            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Cash consideration received (net of cash acquired)   0.0        
Transaction expense   0.0        
Fair value of shares issued to seller   17.0        
Total disposal consideration   17.0        
Carrying value of net assets sold   (11.5)        
Gain on disposal before income taxes and reclassification of foreign currency translation   5.5        
Reclassification of foreign currency translation   (27.4)        
Gain (loss) on disposal before income taxes   (21.9) $ 0.0 $ 0.0 $ 0.0 $ (21.9)
Income tax expense   (21.5)        
Gain (loss) on disposal, net of income taxes   $ (43.4)