v3.26.3
Treasury Stock and Share-Based Awards - Summary of Treasury Stock Activity (Detail)
shares in Thousands, $ in Millions
 9 Months Ended
Sep. 30, 2026
USD ($)
shares
Treasury Stock, Number of Shares and Restriction Disclosures [Abstract]  
Number of Treasury Shares | shares 34,370
Repurchases of common stock, Share | shares 950 [1]
Restricted stock withholdings | shares 790 [2]
Restricted stock forfeitures | shares 40 [3]
Number of Treasury Shares | shares 36,150
Beginning Balance, Cost | $ $ 539.8
Repurchases of common stock | $ 25.3 [1]
Restricted stock withholdings | $ 21.1
Restricted stock forfeitures | $ 0.0 [3]
Ending Balance, Cost | $ $ 586.2
[1] Holdings repurchased outstanding common shares under a share repurchase program. See Share Repurchase Program below.
[2] Holdings withheld shares as a result of the election by certain employees to satisfy their tax liabilities upon vesting of restricted stock, performance stock units and restricted stock units with shares. Holdings determined the number of shares to be withheld based upon market values of Holdings’ common stock on the vest dates, which ranged from $22.97 to $38.38 per share.
[3] Holdings repurchased forfeited restricted shares at a cost of $0.001 per share in accordance with the 2024 Long-Term Incentive Plan.