CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock, at Cost [Member]	Non-controlling Interest [Member]	Total
Balance at Mar. 31, 2021	$ 33.9	$ 255.0	$ 259.2	$ (161.2)	$ (38.2)	$ 7.4	$ 356.1
Balance (in shares) at Mar. 31, 2021	54.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	$ 0.0	0.0	2.3	0.0	0.0	0.5	2.8
Other comprehensive income (loss)	0.0	0.0	0.0	8.0	0.0	0.2	8.2
Stock options and awards	$ 0.1	0.7	0.0	0.0	0.0	0.0	0.8
Stock options and awards (in shares)	0.2
Purchase of treasury stock	$ 0.0	0.0	0.0	0.0	(1.0)	0.0	(1.0)
Stock-based compensation expense	0.0	1.2	0.0	0.0	0.0	0.0	1.2
Dividend paid to noncontrolling interest	0.0	0.0	0.0	0.0	0.0	(0.9)	(0.9)
Balance at Jun. 30, 2021	$ 34.0	256.9	261.5	(153.2)	(39.2)	7.2	367.2
Balance (in shares) at Jun. 30, 2021	54.5
Balance at Mar. 31, 2022	$ 34.2	261.6	344.4	(149.5)	(40.0)	7.4	$ 458.1
Balance (in shares) at Mar. 31, 2022	54.8						54.8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	$ 0.0	0.0	14.3	0.0	0.0	0.0	$ 14.3
Other comprehensive income (loss)	0.0	0.0	0.0	(23.8)	0.0	(0.4)	(24.2)
Stock options and awards	$ 0.1	0.0	0.0	0.0	0.0	0.0	0.1
Stock options and awards (in shares)	0.1
Purchase of treasury stock	$ 0.0	0.0	0.0	0.0	(1.7)	0.0	(1.7)
Stock-based compensation expense	0.0	1.1	0.0	0.0	0.0	0.0	1.1
Dividend paid to noncontrolling interest	0.0	0.0	0.0	0.0	0.0	(0.6)	(0.6)
Balance at Jun. 30, 2022	$ 34.3	$ 262.7	$ 358.7	$ (173.3)	$ (41.7)	$ 6.4	$ 447.1
Balance (in shares) at Jun. 30, 2022	54.9						54.9