Revenue (Disaggregation of Revenue) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Net sales	$ 403.5	$ 352.9	$ 1,087.7	$ 1,034.4
Crane Payment Innovations
Disaggregation of Revenue [Line Items]
Net sales	224.9	221.6	658.3	671.3
Security and Authentication Technologies
Disaggregation of Revenue [Line Items]
Net sales	178.6	131.3	429.4	363.1
Products | Crane Payment Innovations
Disaggregation of Revenue [Line Items]
Net sales	190.9	189.1	557.9	574.9
Services | Crane Payment Innovations
Disaggregation of Revenue [Line Items]
Net sales	34.0	32.5	100.4	96.4
Banknotes and Security Products | Security and Authentication Technologies
Disaggregation of Revenue [Line Items]
Net sales	145.4	130.1	372.9	359.6
Authentication Products and Solutions | Security and Authentication Technologies
Disaggregation of Revenue [Line Items]
Net sales	$ 33.2	$ 1.2	$ 56.5	$ 3.5