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Consolidated Condensed Statements Of Changes In Stockholders' Equity - USD ($) | Total | Preferred Stock [Member] | Common Stock [Member] | Retained Earnings [Member] | Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment | Treasury Stock At Cost [Member] | Accumulated Other Comprehensive Income (loss) [Member]
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2018 |  | $ 0 | $ 358,598,000 | $ 614,069,000 |  | $ (90,373,000) | $ (49,788,000)
Balance (Accounting Standards Update 2016-02 [Member]) at Dec. 31, 2018 |  |  |  | 613,926,000 | $ (143,000) |  |
Net Income |  |  |  | 25,455,000 |  |  |
Other comprehensive income (loss) |  |  |  |  |  |  | 14,335,000
Dividends on common shares |  |  |  | (19,137,000) |  |  |
Cash payment for fractional shares in dividend reinvestment plan |  |  | (1,000) |  |  |  |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures |  |  | (2,480,000) | (273,000) |  | (1,926,000) |
Treasury Stock, Value, Acquired, Cost Method |  |  |  |  |  | 8,502,000 |
Share-based Payment Arrangement, Expense |  |  | 1,358,000 |  |  |  |
Balance at Mar. 31, 2019 |  | 0 | 357,475,000 | 619,971,000 |  | (96,949,000) | (35,453,000)
Balance at Dec. 31, 2018 |  | 0 | 358,598,000 | 614,069,000 |  | (90,373,000) | (49,788,000)
Balance (Accounting Standards Update 2016-02 [Member]) at Dec. 31, 2018 |  |  |  | 613,926,000 | $ (143,000) |  |
Net Income | $ 47,618,000 |  |  |  |  |  |
Other comprehensive income (loss) | 23,481,000 |  |  |  |  |  |
Share-based Payment Arrangement, Expense | 2,500,000 |  |  |  |  |  |
Balance at Jun. 30, 2019 |  | 0 | 456,911,000 | 625,227,000 |  | (121,399,000) | (26,307,000)
Balance at Mar. 31, 2019 |  | 0 | 357,475,000 | 619,971,000 |  | (96,949,000) | (35,453,000)
Net Income | 22,163,000 |  |  | 22,163,000 |  |  |
Other comprehensive income (loss) | 9,146,000 |  |  |  |  |  | 9,146,000
Dividends on common shares |  |  |  | (16,907,000) |  |  |
Cash payment for fractional shares in dividend reinvestment plan |  |  | (1,000) |  |  |  |
Treasury Stock, Value, Acquired, Cost Method |  |  |  |  |  | 24,450,000 |
Share-based Payment Arrangement, Expense | 1,200,000 |  | 1,162,000 |  |  |  |
Balance at Jun. 30, 2019 |  | 0 | 456,911,000 | 625,227,000 |  | (121,399,000) | (26,307,000)
Proceeds from Issuance of Common Stock |  |  | 98,275,000 |  |  |  |
Balance at Dec. 31, 2019 | 969,014,000 | 0 | 459,389,000 | 646,847,000 |  | (127,633,000) | (9,589,000)
Net Income |  |  |  | 22,372,000 |  |  |
Other comprehensive income (loss) |  |  |  |  |  |  | 17,693,000
Dividends on common shares |  |  |  | (20,111,000) |  |  |
Cash payment for fractional shares in dividend reinvestment plan |  |  | (1,000) |  |  |  |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures |  |  | (3,865,000) | (528,000) |  | (2,500,000) |
Treasury Stock, Value, Acquired, Cost Method |  |  |  |  |  | 7,507,000 |
Share-based Payment Arrangement, Expense |  |  | 1,254,000 |  |  |  |
Balance at Mar. 31, 2020 |  | 0 | 456,777,000 | 649,636,000 |  | (132,640,000) | 8,104,000
Balance at Dec. 31, 2019 | 969,014,000 | 0 | 459,389,000 | 646,847,000 |  | (127,633,000) | (9,589,000)
Net Income | 51,877,000 |  |  |  |  |  |
Other comprehensive income (loss) | 23,450,000 |  |  |  |  |  |
Share-based Payment Arrangement, Expense | 2,600,000 |  |  |  |  |  |
Balance at Jun. 30, 2020 | 1,001,594,000 | 0 | 457,966,000 | 662,311,000 |  | (132,544,000) | 13,861,000
Balance at Mar. 31, 2020 |  | 0 | 456,777,000 | 649,636,000 |  | (132,640,000) | 8,104,000
Net Income | 29,505,000 |  |  | 29,505,000 |  |  |
Other comprehensive income (loss) | 5,757,000 |  |  |  |  |  | 5,757,000
Dividends on common shares |  |  |  | (16,837,000) |  |  |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures |  |  | (142,000) | (7,000) |  | (96,000) |
Share-based Payment Arrangement, Expense | 1,300,000 |  | 1,331,000 |  |  |  |
Balance at Jun. 30, 2020 | $ 1,001,594,000 | $ 0 | $ 457,966,000 | $ 662,311,000 |  | $ (132,544,000) | $ 13,861,000

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