CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (Parenthetical) $ in Thousands	12 Months Ended
Dec. 31, 2017 USD ($)
Statement of Stockholders' Equity [Abstract]
Deferred income tax on unrealized gain on securities	$ 3,483
Reclassification adjustment	$ 9,781

Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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