CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Unrealized holding loss on securities arising during the period, income tax expense (benefit)	$ (27,200)	$ (16,200)	$ (8,100)	$ (90,700)	$ (19,000)
Reclassification adjustment for net loss (gain) on sale of securities included in net income, income tax expense (benefit)	(112)	(9)	1,200	488	3,800
Unrealized loss on securities transferred from available-for-sale to held-to maturity, income tax (benefit) expense	0	(12,500)	(913)	(19,100)	(913)
Amortization of unrealized loss on securities transferred from available-for-sale to held-to-maturity, income tax expense	$ 677	$ 396	$ 24	$ 1,200	$ 24