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v3.20.2

Consolidated Statements of Changes In Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Adoption of ASC 326 | Class A Common Stock | Class B Common Stock | Common Stock Class A Common Stock | Common Stock Class B Common Stock | Preferred Stock | Surplus | Retained Earnings | Retained Earnings Adoption of ASC 326 | Retained Earnings Class A Common Stock | Retained Earnings Class B Common Stock | Accumulated Other Comprehensive (Loss) Income
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Beginning balance, shareholders' equity at Dec. 31, 2018 | $ 3,488,954 |  |  |  | $ 10,623 | $ 1,005 | $ 0 | $ 493,962 | $ 3,218,551 |  |  |  | $ (235,187)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 355,497 |  |  |  |  |  |  |  | 355,497 |  |  |  |
Other comprehensive income (loss), net of tax | 63,415 |  |  |  |  |  |  |  |  |  |  |  | 63,415
Stock repurchased during period | (325,900) |  | $ (325,916) |  | (744) |  |  | (325,172) |  |  |  |  |
Cash dividends |  |  | (12,262) | $ (1,206) |  |  |  |  |  |  | $ (12,262) | $ (1,206) |
Preferred stock dividends declared |  |  |  | (9,426) |  |  |  |  |  |  |  | (9,426) |
Ending balance, shareholders' equity at Sep. 30, 2019 | 3,568,482 |  |  |  | 9,879 | 1,005 | 0 | 168,790 | 3,560,580 |  |  |  | (171,772)
Beginning balance, shareholders' equity at Jun. 30, 2019 | 3,574,613 |  |  |  | 10,175 | 1,005 | 0 | 303,880 | 3,440,284 |  |  |  | (180,731)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 124,779 |  |  |  |  |  |  |  | 124,779 |  |  |  |
Other comprehensive income (loss), net of tax | 8,959 |  |  |  |  |  |  |  |  |  |  |  | 8,959
Stock repurchased during period | (135,400) |  | (135,386) |  | (296) |  |  | (135,090) |  |  |  |  |
Cash dividends |  |  | (4,081) | (402) |  |  |  |  |  |  | (4,081) | (402) |
Ending balance, shareholders' equity at Sep. 30, 2019 | 3,568,482 |  |  |  | 9,879 | 1,005 | 0 | 168,790 | 3,560,580 |  |  |  | (171,772)
Beginning balance, shareholders' equity at Dec. 31, 2019 | 3,586,184 | $ 36,943 |  |  | 9,624 | 1,005 | $ 0 | $ 44,081 | 3,658,197 | $ 36,943 |  |  | (126,723)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 353,639 |  |  |  |  |  |  |  | 353,639 |  |  |  |
Other comprehensive income (loss), net of tax | $ 112,967 |  |  |  |  |  |  |  |  |  |  |  | 112,967
Issuance of preferred stock | 339,937 |  |  |  |  |  | 339,937 | 0 |  |  |  |  |
Stock repurchased during period | $ (333,755) |  |  |  | (813) |  |  | $ (44,081) | (288,861) |  |  |  |
Cash dividends |  |  | (10,869) | (1,206) |  |  |  |  |  |  | (10,869) | (1,206) |
Ending balance, shareholders' equity at Sep. 30, 2020 | 4,074,414 |  |  |  | 8,811 | 1,005 | $ 339,937 | 0 | 3,738,417 |  |  |  | (13,756)
Beginning balance, shareholders' equity at Jun. 30, 2020 | 3,991,444 |  |  |  | 8,929 | 1,005 | 339,937 | 0 | 3,651,237 |  |  |  | (9,664)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Net income | 142,684 |  |  |  |  |  |  |  | 142,684 |  |  |  |
Other comprehensive income (loss), net of tax | (4,092) |  |  |  |  |  |  |  |  |  |  |  | (4,092)
Stock repurchased during period | (47,060) |  |  |  | (118) |  |  | 0 | (46,942) |  |  |  |
Cash dividends |  |  | $ (3,524) | (402) |  |  |  |  |  |  | $ (3,524) | (402) |
Preferred stock dividends declared |  |  |  | $ (4,636) |  |  |  |  |  |  |  | $ (4,636) |
Ending balance, shareholders' equity at Sep. 30, 2020 | $ 4,074,414 |  |  |  | $ 8,811 | $ 1,005 | $ 339,937 | $ 0 | $ 3,738,417 |  |  |  | $ (13,756)

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