CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
NET INCOME	$ 23,793	$ 17,774
OTHER COMPREHENSIVE INCOME, NET OF INCOME TAXES:
Unrealized holding gain on available-for-sale securities arising during the period	2,448	13,473
Income tax expense related to available-for-sale securities unrealized holding gain or loss	(881)	(4,854)
Reclassification for net gains on available-for-sale securities realized in earnings	(13)	(21)
Income tax expense related to available-for-sale securities realized gains	5	7
Other comprehensive income	1,559	8,605
COMPREHENSIVE INCOME	$ 25,352	$ 26,379

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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