Income Taxes (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
|
| Income tax reconciliation | ||
| Earnings before income taxes | $ 24,937 | $ 14,868 |
| Income taxes at statutory rate | 5,237 | 5,204 |
| Dividends-received deduction | (25) | (79) |
| Tax-exempt interest | (279) | (633) |
| Other | (80) | (134) |
| Provision for income taxes as shown on the Consolidated Statements of Earnings | $ 4,853 | $ 4,358 |
| GAAP effective tax rate (percent) | 19.50% | 29.30% |