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Shareholders' Equity - Summary of Changes in Shareholders' Equity (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Beginning Balance | $ 4,344,381 | $ 3,845,346 | $ 4,364,725 | $ 3,506,849
Net income | 400,904 | 404,027 | 795,173 | 748,379
Purchase of common stock for treasury | (644,920) | (201,077) | (1,143,696) | (311,125)
Equity-based compensation | 18,101 | 25,159 | 35,242 | 47,436
Proceeds from Options exercised | 15,442 | 79,808 | 82,464 | 161,724
Ending Balance | $ 4,133,908 | $ 4,153,263 | $ 4,133,908 | $ 4,153,263
Common stock repurchased (in shares) | 83,168 | 34,827 | 150,026 | 56,001
Reissued shares during the period, shares (in shares) | 5,809 | 53,615 | 44,786 | 97,556
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 | 2,905,707 | 2,676,641 | 2,848,528 | 2,600,014
Equity-based compensation | 18,101 | 25,159 | 35,242 | 47,436
Proceeds from Options exercised | 15,442 | 79,808 | 82,464 | 161,724
Treasury stock issued upon Option exercise and RSU vesting | (4,197) | (33,921) | (31,181) | (61,487)
Ending Balance | 2,935,053 | 2,747,687 | 2,935,053 | 2,747,687
Retained Earnings |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Beginning Balance | 13,759,294 | 12,117,766 | 13,365,025 | 11,773,414
Net income | 400,904 | 404,027 | 795,173 | 748,379
Ending Balance | 14,160,198 | 12,521,793 | 14,160,198 | 12,521,793
Treasury Stock |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Beginning Balance | (12,320,826) | (10,949,267) | (11,849,034) | (10,866,785)
Purchase of common stock for treasury | (644,920) | (201,077) | (1,143,696) | (311,125)
Treasury stock issued upon Option exercise and RSU vesting | 4,197 | 33,921 | 31,181 | 61,487
Ending Balance | (12,961,549) | (11,116,423) | (12,961,549) | (11,116,423)
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

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