Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net income	$ 19,646	$ 17,506
Other comprehensive income (loss):
Changes in net unrealized losses on debt securities available for sale	40,813	(32,846)
Deferred tax (expense) benefit	(12,066)	9,709
Changes in net unrealized losses on debt securities available for sale, net of tax	28,747	(23,137)
Total comprehensive income (loss)	$ 48,393	$ (5,631)