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Consolidated Statements of Stockholders' Equity (USD $) In Thousands | Common stock [Member] | Additional paid-in capital [Member] | Retained earnings [Member] | Accumulated other comprehensive income [Member] | Treasury stock [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Beginning of year at Dec. 31, 2010 (As Previously Reported [Member]) |  |  | $ 1,176,155 |  |  |
Beginning of year (Add: Adjustment for the cumulative effect on prior years of applying retroactively the new method of accounting for deferred policy acquisition costs [Member]) |  |  | (53,068) |  |  |
Beginning of year at Dec. 31, 2010 | 192,725 | 244,613 | 1,123,087 | 7,024 | (549,408) |
Dividend reinvestment plan (shares: 22,916 - 2012; 22,697 - 2011) | 46 | 360 |  |  |  |
Stock purchase and compensation plans (shares: 540,322 - 2012; 453,409 - 2011) | 907 | 3,602 |  |  |  |
Net income at Jan. 01, 2011 (As Previously Reported [Member]) |  |  |  |  |  | 21,549
Net income (Add: Adjustment for the cumulative effect on prior years of applying retroactively the new method of accounting for deferred policy acquisition costs [Member]) |  |  |  |  |  | (1,049)
Net income |  |  | 20,500 |  |  | 20,500
Dividends to stockholders ($0.13 per share - 2012 and 2011) |  |  | (7,176) |  |  |
Other comprehensive income (loss) |  |  |  | (4,248) |  | (4,248)
Acquisition of treasury stock (shares: 168,614 - 2012; 135,095 - 2011) |  |  |  |  | (2,496) |
End of period at Mar. 31, 2011 | 193,678 | 248,575 | 1,136,411 | 2,776 | (551,904) | 1,029,536
Beginning of year at Dec. 31, 2011 (As Previously Reported [Member]) |  |  |  |  |  |
Beginning of year (Add: Adjustment for the cumulative effect on prior years of applying retroactively the new method of accounting for deferred policy acquisition costs [Member]) |  |  |  |  |  |
Beginning of year at Dec. 31, 2011 | 194,494 | 257,370 | 1,116,319 | 42,294 | (552,149) | 1,058,328
Dividend reinvestment plan (shares: 22,916 - 2012; 22,697 - 2011) | 46 | 358 |  |  |  |
Stock purchase and compensation plans (shares: 540,322 - 2012; 453,409 - 2011) | 1,080 | 4,608 |  |  |  |
Net income |  |  | 18,093 |  |  | 18,093
Dividends to stockholders ($0.13 per share - 2012 and 2011) |  |  | (7,270) |  |  |
Other comprehensive income (loss) |  |  |  | 10,690 |  | 10,690
Acquisition of treasury stock (shares: 168,614 - 2012; 135,095 - 2011) |  |  |  |  | (3,015) |
End of period at Mar. 31, 2012 | $ 195,620 | $ 262,336 | $ 1,127,142 | $ 52,984 | $ (555,164) | $ 1,082,918

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- Definition Represents total other comprehensive income or loss for the period, net of tax. Includes deferred gains (losses) on qualifying hedges, unrealized holding gains (losses) on investment securities, certain changes in the liability for defined benefit pension plans, the portion of other-than-temporary impairments recognized in other comprehensive income, and translation adjustments. + References No definition available. + Details
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