Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2023

Non-contributory defined benefit pension plan

Retirement Plans

Schedule of expenses incurred and charged against operations with regard to all of the company's retirement plans

	Year Ended December 31,
(Dollars in thousands)	2023		2022		2021
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
	$	12,835	$	13,634	$	17,748