Acquisitions and Divestitures - Schedule of Pro Forma Information (Details) - Altra Merger Agreement $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares
Business Combination [Line Items]
Net Sales | $	$ 6,701.8
Net Income Attributable to Regal Rexnord Corporation | $	$ 50.1
Basic (in dollars per share) | $ / shares	$ 0.76
Assuming Diluted (in dollars per share) | $ / shares	$ 0.75