Retirement Plans (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended
	Apr. 01, 2022	Apr. 30, 2022	Mar. 31, 2022	Mar. 31, 2021
Retirement Plans [Abstract]
Service period of participants not impacted by pension plan amendment			15 years
Age of plan participants not impacted by pension plan amendment			50 years
Service period of participants who are age fifty not impacted by pension plan amendment			10 years
Higman [Member]
Retirement Plans [Abstract]
Pension contributions			$ 300
Higman [Member] | Subsequent Event [Member]
Retirement Plans [Abstract]
Pension contributions	$ 400	$ 200
Pension Plan [Member]
Components of net periodic benefit cost [Abstract]
Service cost			1,611	$ 1,927
Interest cost			3,722	3,584
Expected return on plan assets			(7,142)	(6,574)
Amortization of actuarial loss (gain)			110	1,098
Net periodic benefit cost			1,699	35
SERP [Member]
Components of net periodic benefit cost [Abstract]
Service cost			0	0
Interest cost			7	8
Expected return on plan assets			0	0
Amortization of actuarial loss (gain)			7	10
Net periodic benefit cost			$ 14	18
Other Postretirement Benefits Plan [Member]
Retirement Plans [Abstract]
Pension plan defined benefit plan cost increase limit percentage			4.00%
Components of net periodic benefit cost [Abstract]
Interest cost			$ 4	4
Amortization of actuarial loss (gain)			98	113
Net periodic benefit cost			$ (94)	$ (109)