v3.26.1
Earnings per Share - Composition of Weighted-Average Common Shares (Denominator) Used in Basic and Diluted Earnings Per Share (Detail) - $ / shares
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Earnings Per Share [Abstract]    
Weighted Average Number of Shares Issued, Basic 126,599,991 123,603,380
Average treasury shares (in shares) (24,240,949) (21,746,089)
Weighted Average Number of Shares, Deferred Compensation Plans (56,707) (56,543)
Average unearned nonvested shares (184,500) (234,659)
Weighted average common shares and common stock equivalents used to calculate basic earnings per share (in shares) 102,117,835 101,566,089
Additional common stock equivalents (nonvested stock) used to calculate diluted earnings per share 219,909 237,155
Weighted Average Number Of Additional Shares Deferred Compensation Plan 56,744 56,581
Weighted average common shares and common stock equivalents used to calculate diluted earnings per share (in shares) 102,394,488 101,859,825
Basic Earnings per Share (in dollars per share) $ 0.37 $ 0.32
Diluted Earnings per Share (in dollars per share) $ 0.37 $ 0.32