XML 71 R56.htm IDEA: XBRL DOCUMENT v3.24.0.1
Nature of Operations and Summary of Significant Accounting Policies - Computation of Basic and Diluted Earnings per Common Share (EPS) (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Net income $ 392,929 $ 305,262 $ 319,021
Average common shares outstanding (in shares) 202,627 194,694 164,501
Effect of common stock options (in shares) 146 325 357
Diluted common shares outstanding (in shares) 202,773 195,019 164,858
Basic earnings per common share (in dollars per share) $ 1.94 $ 1.57 $ 1.94
Diluted earnings per common share (in dollars per share) $ 1.94 $ 1.57 $ 1.94