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Earnings per Share - Composition of Weighted-Average Common Shares (Denominator) Used in Basic and Diluted Earnings Per Share (Detail) - $ / shares | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Average Shares Outstanding (in shares) | 101,913,111 | 101,556,427 | 93,612,043
Weighted Average Number of Shares Outstanding, Assuming Dilution, Deferred Compensation Plan | 56,543 | 56,955 | 55,820
Weighted average common shares and common stock equivalents used to calculate diluted earnings per share | 102,205,497 | 101,822,201 | 93,887,447
Basic Earnings Per Share (in dollars per share) | $ 1.40 | $ 1.55 | $ 1.37
Diluted Earnings Per Share (in dollars per share) | $ 1.39 | $ 1.54 | $ 1.37
Weighted Average Number of Shares Outstanding, Restricted Stock | 235,843 | 208,819 | 219,584
Common Shares Issued |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Average Shares Outstanding (in shares) | 123,603,380 | 122,780,523 | 113,914,902
Treasury Stock, Common |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Average Shares Outstanding (in shares) | 21,435,256 | 21,004,846 | 20,089,722
Deferred Compensation Plan |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Average Shares Outstanding (in shares) | 57,200 | 56,206 | 55,734
Restricted Stock [Member] |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Average Shares Outstanding (in shares) | 197,813 | 163,044 | 157,403

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