v3.26.1
Earnings per common share - Computations of Basic Earnings Per Common Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Income available to common shareholders:    
Net income $ 664,000 $ 584,000
Less: Preferred stock dividends (43,000) (36,000)
Net income available to common equity 621,000 548,000
Less: Income attributable to unvested stock-based compensation awards (1,000) (1,000)
Net income available to common shareholders $ 620,000 $ 547,000
Weighted-average shares outstanding:    
Common shares outstanding (including common stock issuable) and unvested stock-based compensation awards (in shares) 149,487 164,520
Less: Unvested stock-based compensation awards (in shares) (262) (311)
Weighted-average shares outstanding (in shares) 149,225 164,209
Basic earnings per common share (in USD per share) $ 4.16 $ 3.33