Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands |
Total |
Preferred Stock [Member] |
Common Stock [Member] |
Additional Paid-in Capital [Member] |
Retained Earnings [Member] |
Retained Earnings 1 [Member] |
AOCI Attributable to Parent |
Treasury Stock, Common [Member] |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Balance, beginning of period at Dec. 31, 2024 | $ 685,000 | $ 25,124 | $ 1,887,193 | $ 3,794,609 | $ (75,638) | $ (629,518) | |||||||
| Unit amortization, net of forfeitures | 116,951 | ||||||||||||
| Distributions under employee plans | (142,162) | $ (65,632) | 86,099 | ||||||||||
| Other | (386) | 69 | |||||||||||
| Net Income (Loss) | $ 419,418 | 419,418 | |||||||||||
| Dividends declared, Common | (159,374) | ||||||||||||
| Dividends declared, Preferred | (28,000) | (27,961) | |||||||||||
| Unrealized gains/(losses) on securities, net of tax | 41,798 | [1],[2] | 41,798 | ||||||||||
| Foreign currency translation adjustment, net of tax | 7,994 | [1] | 7,994 | ||||||||||
| Common stock repurchased | (207,449) | (207,449) | |||||||||||
| Balance, end of period at Sep. 30, 2025 | 5,756,135 | 685,000 | 25,124 | 1,861,596 | 3,961,129 | (25,846) | (750,868) | ||||||
| Balance, beginning of period at Jun. 30, 2025 | 685,000 | 25,124 | 1,829,408 | 3,813,207 | (34,200) | (721,554) | |||||||
| Unit amortization, net of forfeitures | 35,214 | ||||||||||||
| Distributions under employee plans | (2,797) | (255) | 1,924 | ||||||||||
| Other | (229) | 15 | |||||||||||
| Net Income (Loss) | 211,371 | 211,371 | |||||||||||
| Dividends declared, Common | (53,889) | ||||||||||||
| Dividends declared, Preferred | (9,320) | ||||||||||||
| Unrealized gains/(losses) on securities, net of tax | 11,968 | [1],[2] | 11,968 | ||||||||||
| Foreign currency translation adjustment, net of tax | (3,614) | [1] | (3,614) | ||||||||||
| Common stock repurchased | (31,238) | (31,238) | |||||||||||
| Balance, end of period at Sep. 30, 2025 | 5,756,135 | 685,000 | 25,124 | 1,861,596 | 3,961,129 | (25,846) | (750,868) | ||||||
| Balance, beginning of period at Dec. 31, 2025 | 5,977,317 | 685,000 | 25,124 | 1,907,949 | 4,163,363 | (17,809) | (786,310) | ||||||
| Unit amortization, net of forfeitures | 142,789 | ||||||||||||
| Distributions under employee plans | (149,739) | (85,097) | 100,856 | ||||||||||
| Other | (292) | 6,624 | |||||||||||
| Net Income (Loss) | 712,039 | 712,039 | |||||||||||
| Dividends declared, Common | (172,105) | ||||||||||||
| Dividends declared, Preferred | (28,000) | (27,961) | |||||||||||
| Unrealized gains/(losses) on securities, net of tax | (63,209) | [1],[2] | (63,209) | ||||||||||
| Foreign currency translation adjustment, net of tax | (4,587) | [1] | (4,587) | ||||||||||
| Common stock repurchased | (390,467) | (390,467) | |||||||||||
| Balance, end of period at Sep. 30, 2026 | 6,046,168 | 685,000 | 25,124 | 1,900,707 | 4,596,863 | (85,605) | (1,075,921) | ||||||
| Balance, beginning of period at Jun. 30, 2026 | 685,000 | 25,124 | 1,857,164 | 4,432,191 | (29,250) | (956,988) | |||||||
| Unit amortization, net of forfeitures | 43,870 | ||||||||||||
| Distributions under employee plans | (84) | (4,481) | 3,043 | ||||||||||
| Other | (243) | $ 1,093 | |||||||||||
| Net Income (Loss) | 234,143 | 234,143 | |||||||||||
| Dividends declared, Common | (56,763) | ||||||||||||
| Dividends declared, Preferred | (9,320) | ||||||||||||
| Unrealized gains/(losses) on securities, net of tax | (55,904) | [1],[2] | (55,904) | ||||||||||
| Foreign currency translation adjustment, net of tax | (451) | [1] | (451) | ||||||||||
| Common stock repurchased | (121,976) | (121,976) | |||||||||||
| Balance, end of period at Sep. 30, 2026 | $ 6,046,168 | $ 685,000 | $ 25,124 | $ 1,900,707 | $ 4,596,863 | $ (85,605) | $ (1,075,921) | ||||||
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| X | ||||||||||
- Definition Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of paid and unpaid common stock dividends declared with the form of settlement in cash. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after tax and adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Aggregate change in value for stock issued during the period as a result of employee stock purchase plan. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Value of shares of stock issued attributable to transactions classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of equity (deficit) attributable to parent and noncontrolling interest. Excludes temporary equity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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