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Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands | Total | Preferred Stock [Member] | Common Stock [Member] | Treasury Stock [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income [Member]
--- | --- | --- | --- | --- | --- | ---
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2016-09 [Member] | $ 67 |  | $ 184 |  | $ (117) |
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2018-02 [Member] | 0 |  |  |  | 4,082 | $ (4,082)
Balance, value at Dec. 31, 2016 | 1,251,012 | $ 2,217 | $ 995,837 |  | 271,957 | (18,999)
Balance (in shares) at Dec. 31, 2016 |  | 9,000 | 58,042,000 |  |  |
Net income | 112,828 |  |  |  | 112,828 |
Other comprehensive income | 856 |  |  |  |  | 856
Issuance of common stock - acquisition related, shares |  | 0 | 14,642,000 |  |  |
Issuance of common stock - acquisition related, value | 636,385 | $ 0 | $ 636,385 |  |  |
Issuance of common stock - stock option and other plans, shares |  |  | 49,000 |  |  |
Issuance of common stock - stock option and other plans, value | 1,980 |  | $ 1,980 |  |  |
Issuance of common stock - restricted stock awards, net of canceled awards, shares |  |  | 241,000 |  |  |
Issuance of common stock - restricted stock awards, net of canceled awards, value | 7,745 |  | $ 7,745 |  |  |
Preferred stock conversion to common stock, shares |  | (9,000) |  |  |  |
Preferred stock conversion to common stock, value |  | $ (2,217) |  |  |  |
Preferred stock conversion to common stock, shares Issued |  |  | 102,000 |  |  |
Preferred stock conversion to common stock, value Issued | 0 |  | $ 2,217 |  |  |
Activity in deferred compensation | 1 |  |  |  |  |
Purchase and retirement of common stock, shares |  |  | (56,000) |  |  |
Purchase and retirement of common stock, value | (2,299) |  | $ (2,299) |  |  |
Cash settlement of acquired equity awards, value | (7,345) |  | (7,345) |  |  |
Cash dividends declared on common stock | (51,308) |  |  |  | (51,308) |
Balance, value at Dec. 31, 2017 | $ 1,949,922 | $ 0 | $ 1,634,705 |  | 337,442 | (22,225)
Balance (in shares) at Dec. 31, 2017 |  | 0 | 73,020,000 |  |  |
Common Stock, Dividends, Per Share, paid | $ 0.88 |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2018-02 [Member] |  |  |  |  |  | (4,082)
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2016-01 [Member] | $ 0 |  |  |  | (157) | 157
Net income | 172,882 |  |  |  | 172,882 |
Other comprehensive income | (13,237) |  |  |  |  | (13,237)
Issuance of common stock - stock option and other plans, shares |  |  | 46,000 |  |  |
Issuance of common stock - stock option and other plans, value | 1,857 |  | $ 1,857 |  |  |
Issuance of common stock - restricted stock awards, net of canceled awards, shares |  |  | 246,000 |  |  |
Issuance of common stock - restricted stock awards, net of canceled awards, value | 8,354 |  | $ 8,354 |  |  |
Activity in deferred compensation | 7 |  | $ 7 |  |  |
Purchase and retirement of common stock, shares |  |  | (63,000) |  |  |
Purchase and retirement of common stock, value | (2,677) |  | $ (2,677) |  |  |
Cash dividends declared on common stock | (83,459) |  |  |  | (83,459) |
Balance, value at Dec. 31, 2018 | $ 2,033,649 | $ 0 | $ 1,642,246 |  | 426,708 | (35,305)
Balance (in shares) at Dec. 31, 2018 |  | 0 | 73,249,000 |  |  |
Common Stock, Dividends, Per Share, paid | $ 1.14 |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2016-02 [Member] | $ 782 |  |  |  | 782 | 0
Net income | 194,451 |  |  |  | 194,451 |
Other comprehensive income | $ 75,672 |  |  |  |  | 75,672
Issuance of common stock - stock option and other plans, shares | 4,327 |  | 59,000 |  |  |
Issuance of common stock - stock option and other plans, value | $ 2,025 |  | $ 2,025 |  |  |
Issuance of common stock - restricted stock awards, net of canceled awards, shares |  |  | 343,000 |  |  |
Issuance of common stock - restricted stock awards, net of canceled awards, value | 9,271 |  | $ 9,271 |  |  |
Activity in deferred compensation | 3 |  | $ 3 |  |  |
Purchase and retirement of common stock, shares |  |  | (74,000) |  |  |
Purchase and retirement of common stock, value | (2,792) |  | $ (2,792) |  |  |
Cash dividends declared on common stock | $ (102,265) |  |  |  | (102,265) |
Purchase of treasury stock, shares | 1,500,000 |  | 1,453,000 |  |  |
Purchase of treasury stock, value | $ (50,834) |  |  | $ (50,834) |  |
Balance, value at Dec. 31, 2019 | $ 2,159,962 | $ 0 | $ 1,650,753 | $ (50,834) | $ 519,676 | $ 40,367
Balance (in shares) at Dec. 31, 2019 |  | 0 | 72,124,000 |  |  |
Common Stock, Dividends, Per Share, paid | $ 1.40 |  |  |  |  |

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