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Consolidated Condensed Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands | Total | Preferred Stock [Member] | Common Stock [Member] | Retained Earnings [Member] | Treasury Stock At Cost [Member] | Accumulated Other Comprehensive Income (loss) [Member]
--- | --- | --- | --- | --- | --- | ---
Cumulative Effect of New Accounting Principle in Period of Adoption | Adjustments for New Accounting Pronouncement [Member] |  |  |  | $ 3,806 |  | $ (3,806)
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets | $ 995 |  |  |  |  | 3,806
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets | Accounting Standards Update 2016-01 [Member] |  |  |  | (1,917) |  | 995
Balance at Dec. 31, 2017 |  | $ 0 | $ 307,726 | 561,908 | $ (87,079) | (26,454)
Balance (Accounting Standards Update 2016-01 [Member]) at Dec. 31, 2017 |  | 0 | 307,726 | 563,825 | (87,079) | (27,449)
Net Income |  |  |  | 31,123 |  |
Other comprehensive income (loss) |  |  |  |  |  | (21,386)
Dividends on common shares |  |  |  | (14,496) |  |
Cash payment for fractional shares in dividend reinvestment plan |  |  | (1) |  |  |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures |  |  | (1,597) | (317) | (1,304) |
Share-based Payment Arrangement, Expense |  |  | 1,121 |  |  |
Balance at Mar. 31, 2018 |  | 0 | 307,249 | 583,941 | (85,775) | (52,641)
Balance at Dec. 31, 2017 |  | 0 | 307,726 | 561,908 | (87,079) | (26,454)
Balance (Accounting Standards Update 2016-01 [Member]) at Dec. 31, 2017 |  | 0 | 307,726 | 563,825 | (87,079) | (27,449)
Net Income | 84,126 |  |  |  |  |
Other comprehensive income (loss) | (28,895) |  |  |  |  |
Share-based Payment Arrangement, Expense | 3,100 |  |  |  |  |
Balance at Sep. 30, 2018 |  | 0 | 357,709 | 603,091 | (91,559) | (60,150)
Balance at Mar. 31, 2018 |  | 0 | 307,249 | 583,941 | (85,775) | (52,641)
Net Income |  |  |  | 28,241 |  |
Other comprehensive income (loss) |  |  |  |  |  | (2,368)
Dividends on common shares |  |  |  | (18,670) |  |
Cash payment for fractional shares in dividend reinvestment plan |  |  | (1) |  |  |
Share-based Payment Arrangement, Expense |  |  | 896 |  |  |
Treasury Stock, Value, Acquired, Cost Method |  |  |  |  | 5,784 |
Balance at Jun. 30, 2018 |  | 0 | 308,144 | 593,512 | (91,559) | (55,009)
Net Income | 24,762 |  |  | 24,762 |  |
Other comprehensive income (loss) | (5,141) |  |  |  |  | (5,141)
Dividends on common shares |  |  |  | (15,183) |  |
Cash payment for fractional shares in dividend reinvestment plan |  |  | (1) |  |  |
Share-based Payment Arrangement, Expense | 1,000 |  | 1,047 |  |  |
Proceeds from Issuance of Common Stock |  |  | 48,519 |  |  |
Balance at Sep. 30, 2018 |  | 0 | 357,709 | 603,091 | (91,559) | (60,150)
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets |  |  |  | 143 |  |
Balance at Dec. 31, 2018 | 832,506 | 0 | 358,598 | 614,069 | (90,373) | (49,788)
Balance (Adjustments for New Accounting Pronouncement [Member]) at Dec. 31, 2018 |  |  |  | 613,926 |  |
Net Income |  |  |  | 25,455 |  |
Other comprehensive income (loss) |  |  |  |  |  | 14,335
Dividends on common shares |  |  |  | (19,137) |  |
Cash payment for fractional shares in dividend reinvestment plan |  |  | (1) |  |  |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures |  |  | (2,480) | (273) | (1,926) |
Share-based Payment Arrangement, Expense |  |  | 1,358 |  |  |
Treasury Stock, Value, Acquired, Cost Method |  |  |  |  | 8,502 |
Balance at Mar. 31, 2019 |  | 0 | 357,475 | 619,971 | (96,949) | (35,453)
Balance at Dec. 31, 2018 | 832,506 | 0 | 358,598 | 614,069 | (90,373) | (49,788)
Balance (Adjustments for New Accounting Pronouncement [Member]) at Dec. 31, 2018 |  |  |  | 613,926 |  |
Net Income | 78,764 |  |  |  |  |
Other comprehensive income (loss) | 37,174 |  |  |  |  |
Share-based Payment Arrangement, Expense | 3,800 |  |  |  |  |
Balance at Sep. 30, 2019 | 956,140 | 0 | 458,142 | 639,594 | (128,982) | (12,614)
Balance at Mar. 31, 2019 |  | 0 | 357,475 | 619,971 | (96,949) | (35,453)
Net Income |  |  |  | 22,163 |  |
Other comprehensive income (loss) |  |  |  |  |  | 9,146
Dividends on common shares |  |  |  | (16,907) |  |
Cash payment for fractional shares in dividend reinvestment plan |  |  | (1) |  |  |
Share-based Payment Arrangement, Expense |  |  | 1,162 |  |  |
Treasury Stock, Value, Acquired, Cost Method |  |  |  |  | 24,450 |
Proceeds from Issuance of Common Stock |  |  | 98,275 |  |  |
Balance at Jun. 30, 2019 |  | 0 | 456,911 | 625,227 | (121,399) | (26,307)
Net Income | 31,146 |  |  | 31,146 |  |
Other comprehensive income (loss) | 13,693 |  |  |  |  | 13,693
Dividends on common shares |  |  |  | (16,779) |  |
Cash payment for fractional shares in dividend reinvestment plan |  |  | (1) |  |  |
Share-based Payment Arrangement, Expense | 1,200 |  | 1,232 |  |  |
Treasury Stock, Value, Acquired, Cost Method |  |  |  |  | 7,583 |
Balance at Sep. 30, 2019 | $ 956,140 | $ 0 | $ 458,142 | $ 639,594 | $ (128,982) | $ (12,614)

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