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v3.20.2

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Preferred Stock | Common Stock | Surplus | Accumulated Other Comprehensive Income (Loss) | Undivided Profits | Impact of ASU 2016-13 adoption | Impact of ASU 2016-13 adoption Undivided Profits
--- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2018 | $ 2,246,434 | $ 0 | $ 923 | $ 1,597,944 | $ (27,374) | $ 674,941 |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Comprehensive income | 236,528 |  |  |  | 51,083 | 185,445 |  |
Stock issued for employee stock purchase plan | 1,312 |  | 1 | 1,311 |  |  |  |
Stock-based compensation plans, net | 6,015 |  | 2 | 6,013 |  |  |  |
Stock issued for Reliance acquisition – 3,999,623 shares | 144,830 | 42,000 | 40 | 102,790 |  |  |  |
Preferred stock retirement | (42,000) | (42,000) |  |  |  |  |  |
Dividends on preferred stock | (326) |  |  |  |  | (326) |  |
Dividends on common stock | (45,722) |  |  |  |  | (45,722) |  |
Balance at Sep. 30, 2019 | 2,547,071 | 0 | 966 | 1,708,058 | 23,709 | 814,338 |  |
Balance at Dec. 31, 2018 | 2,246,434 | 0 | 923 | 1,597,944 | (27,374) | 674,941 |  |
Balance at Dec. 31, 2019 | $ 2,988,924 | 767 | 1,136 | 2,117,282 | 20,891 | 848,848 | $ (128,101) | $ (128,101)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Accounting Standards Update [Extensible List] | us-gaap:AccountingStandardsUpdate201613Member |  |  |  |  |  |  |
Balance at Jun. 30, 2019 | $ 2,469,513 | 0 | 966 | 1,705,262 | 15,316 | 747,969 |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Comprehensive income | 90,219 |  |  |  | 8,393 | 81,826 |  |
Stock-based compensation plans, net | 2,796 |  |  | 2,796 |  |  |  |
Dividends on common stock | (15,457) |  |  |  |  | (15,457) |  |
Balance at Sep. 30, 2019 | 2,547,071 | 0 | 966 | 1,708,058 | 23,709 | 814,338 |  |
Balance at Dec. 31, 2019 | 2,988,924 | 767 | 1,136 | 2,117,282 | 20,891 | 848,848 | $ (128,101) | $ (128,101)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Comprehensive income | 222,554 |  |  |  | 20,618 | 201,936 |  |
Stock issued for employee stock purchase plan | 956 |  | 1 | 955 |  |  |  |
Stock-based compensation plans, net | 7,395 |  | 2 | 7,393 |  |  |  |
Stock repurchases – 4,922,336 shares | (93,307) |  | (49) | (93,258) |  |  |  |
Dividends on preferred stock | (39) |  |  |  |  | (39) |  |
Dividends on common stock | (56,141) |  |  |  |  | (56,141) |  |
Balance at Sep. 30, 2020 | $ 2,942,241 | 767 | 1,090 | 2,032,372 | 41,509 | 866,503 |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Accounting Standards Update [Extensible List] | us-gaap:AccountingStandardsUpdate201613Member |  |  |  |  |  |  |
Balance at Jun. 30, 2020 | $ 2,904,703 | 767 | 1,090 | 2,029,383 | 54,310 | 819,153 |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Comprehensive income | 53,097 |  |  |  | (12,801) | 65,898 |  |
Stock-based compensation plans, net | 2,989 |  |  | 2,989 |  |  |  |
Dividends on preferred stock | (13) |  |  |  |  | (13) |  |
Dividends on common stock | (18,535) |  |  |  |  | (18,535) |  |
Balance at Sep. 30, 2020 | $ 2,942,241 | $ 767 | $ 1,090 | $ 2,032,372 | $ 41,509 | $ 866,503 |  |

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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration