CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net Income	$ 22,705	$ 18,027
Other comprehensive income (loss):
Unrealized gains (losses) on securities available for sale	12,676	(11,022)
Reclassification of unrealized losses on securities transferred to available for sale upon adoption of new accounting pronouncement	(730)	0
Amortization of unrealized losses on securities transferred to held to maturity, net	71	115
Reclassification adjustment for losses included in net income	87	0
(Provision) benefit for income taxes	(3,261)	2,898
Total other comprehensive income (loss)	8,843	(8,009)
Comprehensive Income	$ 31,548	$ 10,018

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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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Amount before 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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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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Amount before tax and reclassification adjustments of unrealized holding gain (loss) related to transfers of securities into the available-for-sale classification and out of the held-to-maturity classification.

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Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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