CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net income	$ 125,428,000	$ 28,356,000
Other comprehensive income (loss), net of tax:
Change in fair value on available-for-sale securities, net of tax	(33,372,000)	32,872,000
Change in fair value of cash flow hedges, net of tax	(17,742,000)	61,084,000
Accretion of net unrealized gains on securities transferred from available-for-sale to held-to-maturity, net of tax	(1,691,000)	(467,000)
Loss on cash flow hedges reclassified from other comprehensive income into net income, net of tax	504,000	1,825,000
Net gain on sale of investment securities reclassified from other comprehensive income into net income, net of tax	0	(342,000)
Total other comprehensive income (loss), net of tax	(52,301,000)	94,972,000
Total comprehensive income	$ 73,127,000	$ 123,328,000