Retirement Plans - Expenses Incurred And Charged Against Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Employee savings plan/ 401(k)	$ 16,528	$ 15,357	$ 14,991
Supplemental executive retirement plan	(3,252)	(1,510)	3,475
Split Dollar Plan	(753)	(105)	(785)
Post-retirement benefits	312	(108)	67
Non-contributory defined benefit pension plan
Defined Benefit Plan Disclosure [Line Items]
Expenses incurred and charged against operations	$ 12,835	$ 13,634	$ 17,748