CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Interest benefit	$ 5,545	$ 3,808	$ 10,991	$ 7,368
Gain (loss) on securities	(314)	(2,089)	(1,418)	783
Income tax expense (benefit)	15,384	15,402	30,702	27,519
Reclassification out of accumulated other comprehensive income (loss) | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
Interest benefit	(63)	182	701	363
Reclassification out of accumulated other comprehensive income (loss) | Accumulated Net Unrealized Investment Gain (Loss)
Gain (loss) on securities	(325)	(2,641)	(1,429)	(650)
Reclassification out of accumulated other comprehensive income (loss) | Accumulated Other Comprehensive Income (Loss)
Income tax expense (benefit)	$ (63)	$ (667)	$ (535)	$ (164)