CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net income	$ 12,918	$ 10,550
Other comprehensive income (loss):
Unrealized holding gains (losses) arising during the period before tax	4,144	(5,366)
Unrealized gains (losses) on securities available for sale	4,144	(4,511)
Unrealized holding gains (losses) arising during the period before tax	(1,162)	150
Less reclassification adjustment for ineffectiveness and caplet amortization before tax	(157)	(81)
Unrealized gains (losses) on derivatives	(1,005)	231
Other comprehensive income (loss), before tax	3,139	(4,280)
Tax expense (benefit)	795	(1,078)
Other comprehensive income (loss), net of tax	2,344	(3,202)
Comprehensive income	$ 15,262	7,348
ASU 2016-01
Other comprehensive income (loss):
Less reclassification adjustment for adoption of ASU 2016-01		$ 855