Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions		12 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Changes in Accumulated Other Comprehensive Loss [Abstract]
Balance		$ 450.7
Other comprehensive income (loss) before reclassifications		(15.5)	$ 5.1
Reclassification from accumulated other comprehensive loss for unrecognized net pension loss in disposed business	[1]		1.7
Income taxes		(1.1)	0.0
Total other comprehensive income (loss)		(11.6)	11.7
Balance		592.8	450.7
Austrian Air-Cooled Automotive Business [Member]
Changes in Accumulated Other Comprehensive Loss [Abstract]
Write-off of net actuarial losses			1.7
Accumulated Other Comprehensive Loss [Member]
Changes in Accumulated Other Comprehensive Loss [Abstract]
Balance		(149.5)	(161.2)
Balance		(161.1)	(149.5)
Foreign Currency Translation [Member]
Changes in Accumulated Other Comprehensive Loss [Abstract]
Balance		(39.1)	(31.0)
Other comprehensive income (loss) before reclassifications		(18.4)	(8.1)
Income taxes		0.0	0.0
Total other comprehensive income (loss)		(18.4)	(8.1)
Balance		(57.5)	(39.1)
Defined Benefit Plans [Member]
Changes in Accumulated Other Comprehensive Loss [Abstract]
Balance		(111.1)	(130.8)
Other comprehensive income (loss) before reclassifications		2.5	11.5
Reclassification from accumulated other comprehensive income (loss)	[2]	5.3	6.5
Reclassification from accumulated other comprehensive loss for unrecognized net pension loss in disposed business	[1]		1.7
Income taxes		(1.1)	0.0
Total other comprehensive income (loss)		6.7	19.7
Balance		(104.4)	(111.1)
Cash Flow Hedges [Member]
Changes in Accumulated Other Comprehensive Loss [Abstract]
Balance		0.7	0.6
Other comprehensive income (loss) before reclassifications		0.4	1.7
Reclassification from accumulated other comprehensive income (loss)	[3]	(0.3)	(1.6)
Income taxes		0.0	0.0
Total other comprehensive income (loss)		0.1	0.1
Balance		$ 0.8	$ 0.7

[1] As a result of the sale of the Austrian air-cooled automotive business, the Company wrote-off $1.7 million of net actuarial losses related to its pension plan as a component of the loss on sale recorded during fiscal 2022. See Note 1 for additional information.

[2] Amounts are included in the calculation of net periodic benefit cost for the Company’s defined benefit plans, which include pension and other postretirement plans. See Note 18 for additional information about the Company’s pension plans.

[3] Amounts represent net gains and losses associated with cash flow hedges that were reclassified to net earnings. See Note 19 for additional information regarding derivative instruments.