Restructuring (Restructuring Charges (Gains) by Segment) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	$ 0.5	$ 6.2	$ (3.7)
Crane Payment Innovations
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	0.5	6.2	(0.9)
Crane Currency
Restructuring Cost and Reserve [Line Items]
Total restructuring charges (gains), net	$ 0.0	$ 0.0	$ (2.8)