Accumulated Other Comprehensive Income/(Loss) - Schedule of Accumulated Other Comprehensive Income/(Loss), Net of Taxes (Details) $ in Millions	6 Months Ended
	Sep. 27, 2025 USD ($)
Schedule of Accumulated Other Comprehensive Income/(Loss), Net of Taxes [Line Items]
Accumulated other comprehensive income/(loss), net of taxes	$ (1.4)
Reclassification to net income	0.0
Change in pension and postretirement liability	0.7
Net gain on foreign currency translation	12.1
Gain on Interest Rate Swap, net of taxes	0.1
Loss on Cross Currency Swap, net of taxes	(6.2)
Net current period other comprehensive income/(loss)	6.7
Accumulated other comprehensive income/(loss), net of taxes	5.3
Currency Translation [Member]
Schedule of Accumulated Other Comprehensive Income/(Loss), Net of Taxes [Line Items]
Accumulated other comprehensive income/(loss), net of taxes	(6.5)
Reclassification to net income
Change in pension and postretirement liability
Net gain on foreign currency translation	12.1
Gain on Interest Rate Swap, net of taxes
Loss on Cross Currency Swap, net of taxes
Net current period other comprehensive income/(loss)	12.1
Accumulated other comprehensive income/(loss), net of taxes	5.6
Change in Fair Value of Interest Rate Swap [Member]
Schedule of Accumulated Other Comprehensive Income/(Loss), Net of Taxes [Line Items]
Accumulated other comprehensive income/(loss), net of taxes	(0.2)
Reclassification to net income	0.0
Change in pension and postretirement liability
Net gain on foreign currency translation
Gain on Interest Rate Swap, net of taxes	0.1
Loss on Cross Currency Swap, net of taxes
Net current period other comprehensive income/(loss)	0.1
Accumulated other comprehensive income/(loss), net of taxes	(0.1)
Change in Fair Value of Cross Currency Swap [Member]
Schedule of Accumulated Other Comprehensive Income/(Loss), Net of Taxes [Line Items]
Accumulated other comprehensive income/(loss), net of taxes	(0.2)
Reclassification to net income
Change in pension and postretirement liability
Net gain on foreign currency translation
Gain on Interest Rate Swap, net of taxes
Loss on Cross Currency Swap, net of taxes	(6.2)
Net current period other comprehensive income/(loss)	(6.2)
Accumulated other comprehensive income/(loss), net of taxes	(6.4)
Pension and Postretirement Liability [Member]
Schedule of Accumulated Other Comprehensive Income/(Loss), Net of Taxes [Line Items]
Accumulated other comprehensive income/(loss), net of taxes	5.5
Reclassification to net income
Change in pension and postretirement liability	0.7
Net gain on foreign currency translation
Gain on Interest Rate Swap, net of taxes
Loss on Cross Currency Swap, net of taxes
Net current period other comprehensive income/(loss)	0.7
Accumulated other comprehensive income/(loss), net of taxes	$ 6.2

RBC Bearings INC 10-Q