CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income		$ 66,904	$ 84,831	$ 68,668
Other comprehensive loss, net of tax:
Unrealized loss on securities available-for-sale arising during the period, net of income taxes	[1]	(118,591)	(4,176)	(72,592)
Reclassification adjustment for net gain on sales of securities included in net income, net of income taxes	[2]	(1,525)	(2,562)	(2,889)
Net unrealized loss on securities transferred from available-for-sale to held-to-maturity, net of income taxes	[3]	(16,558)	(2,415)	0
Amortization of unrealized loss on securities transferred from available-for-sale to held-to-maturity, net of income taxes	[4]	303	115	0
Other comprehensive loss, net of tax		(136,371)	(9,038)	(75,481)
Comprehensive (loss) income, net of tax		$ (69,467)	$ 75,793	$ (6,813)

[1] Income tax (benefit) of the unrealized loss on securities was $(47.4) million, $(1.7) million, and $(29.1) million for the three months ended March 31, 2022, December 31, 2021, and March 31, 2021, respectively.

[2] Income tax expense on the reclassification adjustment for net gain on sales of securities included in net income was $609,000, $1.0 million, and $1.2 million for the three months ended March 31, 2022, December 31, 2021, and March 31, 2021, respective.

[3] Income tax (benefit) on the unrealized loss on securities transferred from available-for-sale to held-to maturity was $(6.6) million and $(968,000) for the three months ended March 31, 2022 and December 31, 2021, respectively.

[4] Income tax expense on the amortization of unrealized loss on securities transferred from available-for-sale to held-to maturity included in net income was $121,000 and $46,000 for the three months ended March 31, 2022 and December 31, 2021, respectively.