Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Loss[Line Items]
Losses on investment securities available-for-sale	$ (2,926)	$ (184)	$ (680)
Income before income taxes	161,680	156,787	154,885
Income tax expense	(36,746)	(36,255)	(36,328)
Net income	124,934	120,532	$ 118,557
Unrealized gains and losses on available-for-sale securities | Amount reclassified from Accumulated Other Comprehensive Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Loss[Line Items]
Losses on investment securities available-for-sale	(2,926)	(184)
Income before income taxes	(2,926)	(184)
Income tax expense	665	43
Net income	$ (2,261)	$ (141)