v3.26.1
Shareholders' Equity - Summary of Changes in Shareholders' Equity (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance $ 3,494,034 $ 3,954,664 $ 3,864,869 $ 4,210,072
Net income 236,458 333,737 434,817 633,313
Purchase of common stock for treasury (361,286) (475,806) (997,854) (1,064,255)
Equity-based compensation 19,293 17,812 32,580 36,339
Proceeds from Options exercised 2,697 14,724 56,784 29,662
Ending Balance $ 3,391,196 $ 3,845,131 $ 3,391,196 $ 3,845,131
Common stock repurchased (in shares) 54,716 65,834 144,896 142,954
Reissued shares during the period, shares (in shares) 1,042 4,434 23,662 14,525
Common Stock        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance $ 206 $ 206 $ 206 $ 206
Ending Balance 206 206 206 206
Additional Paid-In Capital        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance 3,202,642 3,057,037 3,155,367 3,031,637
Equity-based compensation 19,293 17,812 32,580 36,339
Proceeds from Options exercised 2,697 14,724 56,784 29,662
Treasury stock issued upon Option exercise and RSU vesting (962) (3,669) (21,061) (11,734)
Ending Balance 3,223,670 3,085,904 3,223,670 3,085,904
Retained Earnings        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance 16,585,128 15,346,529 16,386,769 15,046,953
Net income 236,458 333,737 434,817 633,313
Ending Balance 16,821,586 15,680,266 16,821,586 15,680,266
Treasury Stock        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance (16,293,942) (14,449,108) (15,677,473) (13,868,724)
Purchase of common stock for treasury (361,286) (475,806) (997,854) (1,064,255)
Treasury stock issued upon Option exercise and RSU vesting 962 3,669 21,061 11,734
Ending Balance (16,654,266) (14,921,245) (16,654,266) (14,921,245)
Deferred Compensation Trust        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance (16,710) (16,710) (16,710) (16,710)
Ending Balance (16,710) (16,710) (16,710) (16,710)
Deferred Compensation Liability        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance 16,710 16,710 16,710 16,710
Ending Balance $ 16,710 $ 16,710 $ 16,710 $ 16,710