Pensions (Details) - USD ($) $ in Millions		3 Months Ended
		Jun. 30, 2023	Jun. 30, 2022
Net Periodic Benefit Cost [Abstract]
Net periodic benefit cost	[1]	$ 0.8	$ 0.4
Pension [Member]
Net Periodic Benefit Cost [Abstract]
Service cost		0.1	0.1
Interest cost		2.4	2.0
Expected return on plan assets		(2.6)	(2.9)
Amortization of unrecognized net loss		1.1	1.4
Net periodic benefit cost		$ 1.0	$ 0.6

[1] Net periodic benefit cost for the Company’s pension and postretirement plans is exclusive of service cost.