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Earnings per Share (EPS) (Tables) | 3 Months Ended
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Mar. 31, 2025
Earnings Per Share [Abstract] |
Schedule of Reconciliation of Net Income and Weighted Average Common Shares Outstanding used in Computations of Basic and Diluted Earnings per Common Share | The following table reconciles the net income and the weighted average common shares outstanding used in the computations of basic and diluted earnings per common share:
|  | Three Months Ended March 31, |  |
(In thousands, except per share amounts) |  | 2025 |  | 2024 |  |  |  |
Net income |  | $ | 175,433 |  |  | $ | 181,719 |  |  |  |  |
Basic weighted average shares outstanding |  | 102,881 |  |  | 105,697 |  |  |  |  |
Dilutive effect of nonvested shares |  | 1,065 |  |  | 1,073 |  |  |  |  |
Diluted weighted average shares outstanding |  | 103,946 |  |  | 106,770 |  |  |  |  |
Basic earnings per share |  | $ | 1.71 |  |  | $ | 1.72 |  |  |  |  |
Diluted earnings per share |  | $ | 1.69 |  |  | $ | 1.70 |  |  |  |  |
Schedule of Disclosure of Share-based Compensation Arrangements by Share-based Payment Award | Nonvested performance-based share awards are considered contingently issuable for purposes of the EPS calculation. The 2025, 2024 and 2023 performance-based share awards vest based upon our compounded annual book value per share growth percentage and relative total shareholder return during a three-year performance period. The following table summarizes the performance-based shares issuable if the reporting date was the end of the contingency period:
|  | 2025 Performance-Based Grants |  | 2024 Performance-Based Grants |  | 2023 Performance-Based Grants |  | 2022 Performance-Based Grants
Reporting Date |  | Percent Issuable Relative to Target |  | As a Percent of Shares Issued |  | Percent Issuable Relative to Target |  | As a Percent of Shares Issued |  | Percent Issuable Relative to Target |  | As a Percent of Shares Issued |  | Percent Issuable Relative to Target |  | As a Percent of Shares Issued
March 31, 2025 |  | 200% |  | 100% |  | 103% |  | 51.5% |  | 188% |  | 94% |  | (1) |  | (1)
March 31, 2024 |  |  |  |  |  | 179% |  | 89.5% |  | 200% |  | 100% |  | 200% |  | 100%
(1) The 2022 performance based awards vested at 168% relative to target on March 1, 2025.

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- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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