Segment Information (Financial Information by Reportable Segment) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Total net sales	$ 1,391.3	$ 1,339.9	$ 1,345.1
Operating profit and Income before income taxes:
Total operating profit	286.8	301.3	279.2
Interest income	1.1	0.2	0.1
Miscellaneous income, net	2.5	3.1	4.7
Income before income taxes	239.8	248.3	226.1
Total capital expenditures	35.1	21.3	18.6
Total depreciation and amortization	77.6	78.7	81.8
Restructuring charges (gains), net	0.5	6.2	(3.7)
Nonrelated Party
Operating profit and Income before income taxes:
Interest expense	(48.1)	(41.9)	(41.8)
Related Party
Operating profit and Income before income taxes:
Interest expense	(2.5)	(14.4)	(16.1)
Corporate
Operating profit and Income before income taxes:
Total operating profit	(72.3)	(33.1)	(30.4)
Total capital expenditures	1.6	0.0	0.0
Total depreciation and amortization	2.2	0.5	0.5
Crane Payment Innovations
Segment Reporting Information [Line Items]
Total net sales	886.4	874.3	805.7
Operating profit and Income before income taxes:
Restructuring charges (gains), net	0.5	6.2	(0.9)
Crane Payment Innovations | Operating Segments
Operating profit and Income before income taxes:
Total operating profit	242.8	217.1	164.5
Total capital expenditures	7.6	5.0	4.5
Total depreciation and amortization	31.2	32.9	34.5
Crane Currency
Segment Reporting Information [Line Items]
Total net sales	504.9	465.6	539.4
Operating profit and Income before income taxes:
Restructuring charges (gains), net	0.0	0.0	(2.8)
Crane Currency | Operating Segments
Operating profit and Income before income taxes:
Total operating profit	116.3	117.3	145.1
Total capital expenditures	25.9	16.3	14.1
Total depreciation and amortization	$ 44.2	$ 45.3	$ 46.8