v3.26.1
Net Income per Common Share - Reconciliation of Weighted Average Common Shares Outstanding Used for Computation of Basic and Diluted Net Income per Common Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jan. 31, 2026
Jan. 31, 2025
Jan. 31, 2024
Earnings Per Share [Abstract]      
Net Income (Loss) $ 464,919 $ 402,462 $ 287,674
Basic weighted-average common shares outstanding 90,191,801 92,684,127 92,697,751
Effect of dilutive options, stock appreciation rights, restricted stock units and performance stock units 1,616,556 1,763,919 1,630,034
Diluted weighted-average shares outstanding 91,808,357 94,448,046 94,327,785
Basic $ 5.15 $ 4.34 $ 3.1
Diluted $ 5.06 $ 4.26 $ 3.05