CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net earnings	$ 45.3	$ 14.3
Other comprehensive income (loss), net of income taxes:
Foreign currency translation	(0.8)	(23.9)
Defined benefit plans, net of income taxes of $0.2 and $0 million	0.8	1.3
Cash flow hedges, net of income taxes of ($0.2) and $0 million	(0.7)	(1.6)
Total other comprehensive income (loss)	(0.7)	(24.2)
Comprehensive income (loss)	44.6	(9.9)
Comprehensive (income) loss attributable to noncontrolling interest	(0.3)	0.4
Comprehensive income (loss) attributable to Modine	$ 44.3	$ (9.5)