v3.26.1
Reclassifications out of AOCI (Tables)
 12 Months Ended
Mar. 31, 2026
Equity [Abstract]  
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Accumulated other comprehensive income (loss) shown in our Consolidated Statements of Shareholders' Equity and changes in our balances, net of tax, for the years ended March 31, 2026, 2025 and 2024 were as follows:
Defined Benefit
Plans (1)
Foreign Currency TranslationTotal Accumulated Other Comprehensive Loss
(in millions)202620252024202620252024202620252024
Beginning Balance$(0.6)$(0.7)$— $(291.8)$(327.9)$(320.7)$(292.3)$(328.7)$(320.7)
Other Comprehensive (Loss) Income before reclassifications(0.2)0.4 0.6 181.8 9.2 (7.2)181.6 9.6 (6.6)
Amounts reclassified from Accumulated Other Comprehensive (Loss) Income(0.4)(0.3)(1.4)(2.0)27.0 — (2.4)26.7 (1.4)
Net current-period Other Comprehensive (Loss) Income(0.6)0.1 (0.7)179.7 36.2 (7.2)179.2 36.3 (7.9)
Ending Balance$(1.1)$(0.6)$(0.7)$(112.0)$(291.8)$(327.9)$(113.1)$(292.3)$(328.7)
(1) The amortization (gain) of defined benefit plan costs is reported in the Interest and miscellaneous income line of our Consolidated Statements of Income.