| **Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)In Thousands, unless otherwise specified** | 3 Months Ended | 6 Months Ended |
|---------------------------------------------------------------------------------------------------------------------------|----------------|----------------|
||
| Net Income                                                                                                                | $ 11,928       | $ 5,816        | $ 24,228 | $ 16,369 |
| **Other comprehensive income (loss), before tax (expense) benefit:**                                                      |           |           |   |   |
| Unrealized holding gains (losses) on securities arising from during the period                                            | 9,950          | (25,230)       | 22,407 | (27,641) |
| Less: reclassification adjustment for gains on securities included in net income                                          | (2)            | (4)            | (2) | (8) |
| Total other comprehensive income (loss), before tax (expense) benefit                                                     | 9,948          | (25,234)       | 22,405 | (27,649) |
| Income tax (expense) benefit related to items of other comprehensive income (loss)                                        | (3,478)        | 8,824          | (7,839) | 9,668 |
| Total other comprehensive income (loss)                                                                                   | 6,470          | (16,410)       | 14,566 | (17,981) |
| Comprehensive Income (Loss)                                                                                               | $ 18,398       | $ (10,594)     | $ 38,794 | $ (1,612) |

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.
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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.
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Amount before tax of other comprehensive income (loss) attributable to parent entity.
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Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity.
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Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.
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