Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 74,327	$ 53,841	$ 84,410
Other comprehensive income (loss) before tax:
Unrealized gain (loss) on securities available-for-sale	19,296	20,622	(9,651)
Realized gain on sale of securities available-for-sale	(4,728)	(8,274)	0
Unrealized (loss) gain on cash flow hedges	(804)	(921)	524
Other comprehensive income (loss) before taxes	13,764	11,427	(9,127)
Income tax effect	(1,734)	(1,472)	1,113
Other comprehensive income (loss) after taxes	12,030	9,955	(8,014)
Comprehensive income	$ 86,357	$ 63,796	$ 76,396

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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