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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($) $ in Thousands | Total | Series B Preferred Stock | Preferred Stock Shares | Common Stock | Treasury Stock | Additional Paid-In Capital | Accumulated Other Comprehensive Income (Loss) | Retained Earnings | Retained Earnings Series B Preferred Stock
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance, issued (in shares) at Dec. 31, 2020 |  |  | 2,510,696 | 456,729,251 |  |  |  |  |
Beginning Balance (in shares) at Dec. 31, 2020 |  |  |  | 375,287,999 | 81,441,252 |  |  |  |
Beginning Balance at Dec. 31, 2020 | $ 2,562,835 |  | $ 251,070 | $ 91,346 | $ (798,993) | $ 1,331,247 | $ (34,200) | $ 1,722,365 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Net income | 781,408 |  |  |  |  |  |  | 781,408 |
Other comprehensive income (loss), net of tax | 12,560 |  |  |  |  |  | 12,560 |  |
Total comprehensive income | 793,968 |  |  |  |  |  |  |  |
Cash dividends declared: |  |  |  |  |  |  |  |  |
Common Stock | (20,170) |  |  |  |  |  |  | (20,170) |
Preferred Stock |  | $ (2,393) |  |  |  |  |  |  | $ (2,393)
Dividend equivalent units related to employee stock-based compensation plans | $ (16) |  |  |  |  | 522 |  | (538) |
Issuance of common shares (in shares) | 3,281,307 |  |  | 3,281,307 |  |  |  |  |
Issuance of common shares | $ 2,021 |  |  | $ 656 |  | 1,365 |  |  |
Stock-based compensation expense | 17,568 |  |  |  |  | 17,568 |  |  |
Common stock repurchased and cancelled (in shares) |  |  |  | (28,502,460) |  |  |  |  |
Common stock repurchased and cancelled | $ (472,388) |  |  | $ (5,700) |  | (466,688) |  |  |
Common stock repurchased (in shares) | (71,509,671) |  |  | (43,007,211) | (43,007,211) |  |  |  |
Common stock repurchased | $ (560,117) |  |  |  | $ (734,801) | 174,684 |  |  |
Shares repurchased related to employee stock-based compensation plans (in shares) | (1,252,412) |  |  | (1,252,412) | (1,252,412) |  |  |  |
Shares repurchased related to employee stock-based compensation plans | $ (17,930) |  |  |  | $ (17,930) |  |  |  |
Ending Balance, issued (in shares) at Jun. 30, 2021 |  |  | 2,510,696 | 431,508,098 |  |  |  |  |
Ending Balance (in shares) at Jun. 30, 2021 |  |  |  | 305,807,223 | 125,700,875 |  |  |  |
Ending Balance at Jun. 30, 2021 | 2,303,378 |  | $ 251,070 | $ 86,302 | $ (1,551,724) | 1,058,698 | (21,640) | 2,480,672 |
Beginning Balance, issued (in shares) at Mar. 31, 2021 |  |  | 2,510,696 | 431,053,178 |  |  |  |  |
Beginning Balance (in shares) at Mar. 31, 2021 |  |  |  | 328,351,576 | 102,701,602 |  |  |  |
Beginning Balance at Mar. 31, 2021 | 2,608,464 |  | $ 251,070 | $ 86,211 | $ (1,108,630) | 1,052,904 | (24,077) | 2,350,986 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Net income | 140,201 |  |  |  |  |  |  | 140,201 |
Other comprehensive income (loss), net of tax | 2,437 |  |  |  |  |  | 2,437 |  |
Total comprehensive income | 142,638 |  |  |  |  |  |  |  |
Cash dividends declared: |  |  |  |  |  |  |  |  |
Common Stock | (9,264) |  |  |  |  |  |  | (9,264) |
Preferred Stock |  | (1,192) |  |  |  |  |  |  | (1,192)
Dividend equivalent units related to employee stock-based compensation plans | $ 0 |  |  |  |  | 59 |  | (59) |
Issuance of common shares (in shares) | 454,920 |  |  | 454,920 |  |  |  |  |
Issuance of common shares | $ (40) |  |  | $ 91 |  | (131) |  |  |
Stock-based compensation expense | 6,444 |  |  |  |  | 6,444 |  |  |
Fees related to first-quarter 2021 common stock tender offer | $ (578) |  |  |  |  | (578) |  |  |
Common stock repurchased (in shares) | (22,806,841) |  |  | (22,806,841) | (22,806,841) |  |  |  |
Common stock repurchased | $ (439,477) |  |  |  | $ (439,477) | 0 |  |  |
Shares repurchased related to employee stock-based compensation plans (in shares) | (192,432) |  |  | (192,432) | (192,432) |  |  |  |
Shares repurchased related to employee stock-based compensation plans | $ (3,617) |  |  |  | $ (3,617) |  |  |  |
Ending Balance, issued (in shares) at Jun. 30, 2021 |  |  | 2,510,696 | 431,508,098 |  |  |  |  |
Ending Balance (in shares) at Jun. 30, 2021 |  |  |  | 305,807,223 | 125,700,875 |  |  |  |
Ending Balance at Jun. 30, 2021 | 2,303,378 |  | $ 251,070 | $ 86,302 | $ (1,551,724) | 1,058,698 | (21,640) | 2,480,672 |
Beginning Balance, issued (in shares) at Dec. 31, 2021 |  |  | 2,510,696 | 432,013,372 |  |  |  |  |
Beginning Balance (in shares) at Dec. 31, 2021 |  |  |  | 278,956,733 | 153,056,639 |  |  |  |
Beginning Balance at Dec. 31, 2021 | 2,149,711 |  | $ 251,070 | $ 86,403 | $ (2,061,383) | 1,074,384 | (17,897) | 2,817,134 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Net income | 470,885 |  |  |  |  |  |  | 470,885 |
Other comprehensive income (loss), net of tax | (46,102) |  |  |  |  |  | (46,102) |  |
Total comprehensive income | 424,783 |  |  |  |  |  |  |  |
Cash dividends declared: |  |  |  |  |  |  |  |  |
Common Stock | (58,576) |  |  |  |  |  |  | (58,576) |
Preferred Stock |  | (3,032) |  |  |  |  |  |  | (3,032)
Dividend equivalent units related to employee stock-based compensation plans | $ (17) |  |  |  |  | 784 |  | (801) |
Issuance of common shares (in shares) | 3,088,710 |  |  | 3,088,710 |  |  |  |  |
Issuance of common shares | $ 450 |  |  | $ 618 |  | (168) |  |  |
Stock-based compensation expense | $ 20,296 |  |  |  |  | 20,296 |  |  |
Common stock repurchased (in shares) | (29,530,400) |  |  | (29,530,400) | (29,530,400) |  |  |  |
Common stock repurchased | $ (536,038) |  |  |  | $ (536,038) |  |  |  |
Shares repurchased related to employee stock-based compensation plans (in shares) | (1,130,903) |  |  | (1,130,903) | (1,130,903) |  |  |  |
Shares repurchased related to employee stock-based compensation plans | $ (20,767) |  |  |  | $ (20,767) |  |  |  |
Ending Balance, issued (in shares) at Jun. 30, 2022 |  |  | 2,510,696 | 435,102,082 |  |  |  |  |
Ending Balance (in shares) at Jun. 30, 2022 |  |  |  | 251,384,140 | 183,717,942 |  |  |  |
Ending Balance at Jun. 30, 2022 | 1,976,810 |  | $ 251,070 | $ 87,021 | $ (2,618,188) | 1,095,296 | (63,999) | 3,225,610 |
Beginning Balance, issued (in shares) at Mar. 31, 2022 |  |  | 2,510,696 | 434,608,189 |  |  |  |  |
Beginning Balance (in shares) at Mar. 31, 2022 |  |  |  | 271,083,556 | 163,524,633 |  |  |  |
Beginning Balance at Mar. 31, 2022 | 2,044,207 |  | $ 251,070 | $ 86,922 | $ (2,254,667) | 1,086,852 | (39,514) | 2,913,544 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Net income | 342,073 |  |  |  |  |  |  | 342,073 |
Other comprehensive income (loss), net of tax | (24,485) |  |  |  |  |  | (24,485) |  |
Total comprehensive income | 317,588 |  |  |  |  |  |  |  |
Cash dividends declared: |  |  |  |  |  |  |  |  |
Common Stock | (28,083) |  |  |  |  |  |  | (28,083) |
Preferred Stock |  | $ (1,757) |  |  |  |  |  |  | $ (1,757)
Dividend equivalent units related to employee stock-based compensation plans | $ (1) |  |  |  |  | 166 |  | (167) |
Issuance of common shares (in shares) | 493,893 |  |  | 493,893 |  |  |  |  |
Issuance of common shares | $ 2 |  |  | $ 99 |  | (97) |  |  |
Stock-based compensation expense | $ 8,375 |  |  |  |  | 8,375 |  |  |
Common stock repurchased (in shares) | (19,997,008) |  |  | (19,997,008) | (19,997,008) |  |  |  |
Common stock repurchased | $ (360,095) |  |  |  | $ (360,095) |  |  |  |
Shares repurchased related to employee stock-based compensation plans (in shares) | (196,301) |  |  | (196,301) | (196,301) |  |  |  |
Shares repurchased related to employee stock-based compensation plans | $ (3,426) |  |  |  | $ (3,426) |  |  |  |
Ending Balance, issued (in shares) at Jun. 30, 2022 |  |  | 2,510,696 | 435,102,082 |  |  |  |  |
Ending Balance (in shares) at Jun. 30, 2022 |  |  |  | 251,384,140 | 183,717,942 |  |  |  |
Ending Balance at Jun. 30, 2022 | $ 1,976,810 |  | $ 251,070 | $ 87,021 | $ (2,618,188) | $ 1,095,296 | $ (63,999) | $ 3,225,610 |

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