Pension and Employee Benefit Plans, Cost Components of Pension Plans (Details) - USD ($) $ in Millions		12 Months Ended
		Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Net Periodic Benefit Cost [Abstract]
Net periodic benefit cost	[1]	$ 2.0	$ 1.1	$ 3.3
Austrian Air-Cooled Automotive Business [Member]
Other Changes in Benefit Obligation Recognized in Other Comprehensive Income [Abstract]
Write-off of net actuarial losses			1.7
Pension Plans [Member]
Net Periodic Benefit Cost [Abstract]
Service cost		0.2	0.3	0.4
Interest cost		8.1	7.3	7.9
Expected return on plan assets		(11.6)	(12.9)	(11.5)
Amortization of net actuarial loss		5.7	6.9	6.9
Settlements	[2]	0.0	0.0	0.2
Net periodic benefit cost		2.4	1.6	3.9
Other Changes in Benefit Obligation Recognized in Other Comprehensive Income [Abstract]
Net actuarial gain		2.1	11.4	33.8
Amortization of net actuarial loss	[3]	5.7	8.6	7.1
Total recognized in other comprehensive income		7.8	20.0	40.9
Pension Plans [Member] | Austrian Air-Cooled Automotive Business [Member]
Other Changes in Benefit Obligation Recognized in Other Comprehensive Income [Abstract]
Write-off of net actuarial losses			1.7
Pension Plans [Member] | Non-U.S Plans [Member] | Maximum [Member]
Net Periodic Benefit Cost [Abstract]
Amortization of net actuarial loss		$ 1.0	$ 1.0	$ 1.0

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

[2] The settlement charges resulted from activity associated with the Company’s non-U.S. pension plans.

[3] The fiscal 2022 amount includes $1.7 million of net actuarial losses written-off as a result of the sale of the Austrian air-cooled automotive business.  See Note 1 for additional information.