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Stockholders' Equity (Narrative) (Detail) shares in Thousands, $ in Millions | 3 Months Ended | 41 Months Ended
--- | --- | ---
Mar. 31, 2024 USD ($) shares | Mar. 31, 2024 USD ($) shares
Equity [Abstract] |  |
Remaining authorized amount under stock repurchase program | $ 210.4 | $ 210.4
Common stock repurchased, shares | shares | 59 | 3,600
Purchase of Company, value | $ 3.5 | $ 189.6
Maximum |  |
Equity [Abstract] |  |
Stock repurchase program, authorized amount | $ 400.0 | $ 400.0

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