Acquisitions And Divestitures (Details) - USD ($)			1 Months Ended				3 Months Ended					12 Months Ended
	Dec. 31, 2019	Jan. 10, 2018	Jul. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Apr. 30, 2017	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired												$ 156,200,000	$ 648,000,000.0	$ 54,800,000
Business Combination, Integration Related Costs												5,200,000	19,800,000	7,800,000
Inventory step-up and backlog amortization								$ 300,000	$ 300,000	$ 1,900,000	$ 6,600,000		9,100,000
Goodwill, Acquired During Period												63,400,000	208,400,000
Portion of noncontrolling interest sold				70.00%
Proceeds from Noncontrolling Interests				$ 14,100,000
Deconsolidation, Gain (Loss), Amount												(1,200,000)	(1,700,000)	1,000,000.0
deconsolidation after-tax gain														700,000
Deconsolidation, Revaluation of Retained Investment, Gain (Loss), Amount														900,000
Noncontrolling Interest in Joint Ventures				$ 2,300,000										$ 2,300,000
cost of capital														10.00%
Crane Currency [Member]
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Revenue												3,310,100,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual													458,200,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual													33,800,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets							$ 199,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities							107,200,000
Business Combination, Consideration Transferred			$ 24,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill							252,800,000
Payments to acquire businesses, gross		$ 800,000,000
Payments to Acquire Businesses, Net of Cash Acquired		$ 672,300,000	$ 648,000,000.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt							97,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities							120,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment							298,000,000.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets							5,300,000
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net							217,100,000
Business Combination, Separately Recognized Transactions, Assets Recognized							972,800,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities							324,800,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							$ 648,000,000.0
Business Acquisition, Pro Forma Net Income (Loss)												$ 155,300,000
Business Acquisition, Pro Forma Earnings Per Share, Basic												$ 2.61
Business Acquisition, Pro Forma Earnings Per Share, Diluted												$ 2.57
Crane Currency [Member]
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Revenue												$ 3,475,200,000	$ 3,531,100,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	$ 89,300,000											89,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities	67,100,000											67,100,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	66,000,000.0											66,000,000.0
Payments to acquire businesses, gross	160,000,000
Payments to Acquire Businesses, Net of Cash Acquired	156,200,000
Debt instrument, face amount	150,000,000											150,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	22,400,000											22,400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities	89,500,000											89,500,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	26,600,000											26,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	9,100,000											9,100,000
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	54,700,000											54,700,000
Business Combination, Separately Recognized Transactions, Assets Recognized	245,700,000											245,700,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	156,200,000											156,200,000
Westlock [Member]
Business Acquisition [Line Items]
Payments to acquire businesses, gross						$ 40,000,000
Business Acquisition, Revenue Reported by Acquired Entity for Last Annual Period						32,000,000
Goodwill, Acquired During Period						$ 22,600,000
Microtronic [Member]
Business Acquisition [Line Items]
Payments to acquire businesses, gross					$ 18,000,000
Goodwill, Acquired During Period					$ 8,900,000
Developed Technology Rights [Member] | Crane Currency [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life							8 years 4 months 24 days
Trademarks and Trade Names | Crane Currency [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	3,000,000.0											$ 3,000,000.0
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life												7 years
Technology-Based Intangible Assets [Member] | Crane Currency [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill							$ 74,000,000.0
Technology-Based Intangible Assets [Member] | Crane Currency [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	8,500,000											$ 8,500,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life												10 years
Customer Relationships | Crane Currency [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill							$ 135,800,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life							23 years 1 month 6 days
Customer Relationships | Crane Currency [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 54,500,000											$ 54,500,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life												18 years
Other Intangible Assets [Member] | Crane Currency [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill							$ 1,000,000.0
Order or Production Backlog [Member] | Crane Currency [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life							1 year
Intellectual Property Rights [Member] | Crane Currency [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill							$ 42,000,000.0
Technology-Based Intangible Assets [Member] | Crane Currency [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, remaining amortization period												10 years
Technology-Based Intangible Assets [Member] | Minimum [Member] | Crane Currency [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, remaining amortization period												7 years
Technology-Based Intangible Assets [Member] | Maximum [Member] | Crane Currency [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, remaining amortization period												11 years
Trade Names [Member] | Crane Currency [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, remaining amortization period												7 years
Customer Relationships | Crane Currency [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, remaining amortization period												18 years
Customer Relationships | Minimum [Member] | Crane Currency [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, remaining amortization period												18 years
Customer Relationships | Maximum [Member] | Crane Currency [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, remaining amortization period												24 years
Crane Co.
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent				4.90%				4.90%					4.90%	4.90%