Pension and Other Postretirement Benefit Plans - Schedule of Components of Net Periodic Benefit Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 179	$ 192
Interest cost	16,278	11,823
Expected return on plan assets	(30,324)	(33,455)
Amortization of prior service credits	26	42
Amortization of net loss	7,719	9,583
Curtailment loss		16,024
Special termination benefits		54
Net periodic benefit (income) expense	(6,122)	4,263
Other postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit (income) expense	$ 2,291	$ 2,349