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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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Significant Accounting Policies - Narrative (Details)	3 Months Ended				12 Months Ended
Significant Accounting Policies - Narrative (Details)	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2018 USD ($) venture reporting_unit	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jan. 01, 2019 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of reporting units \| reporting_unit					7
Number of joint ventures \| venture					3
Revenue from service contracts and post-shipment performance obligations					3.00%
Standard and Extended Product Warranty Accrual, Additions from Business Acquisition					$ 89,400,000
Percentage of LIFO inventory					66.00%
Capitalized Computer Software, Net [Abstract]
Capitalized computer software costs, net of amortization	$ 15,700,000				$ 20,200,000	$ 15,700,000
Amortization expense					$ 6,400,000	5,600,000	$ 5,200,000
Goodwill Annual Impairment Test [Abstract]
Gross value of definite-lived intangible assets following accelerated amortization method (as a percentage)					75.00%
Impairment of intangible assets, finite-lived					$ 0	0	0
Impairment of intangible assets, indefinite-lived (excluding goodwill)					$ 0	$ 0	$ 0
Research and development expense as a percentage of cost of goods sold					3.00%	3.00%	2.00%
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Operating income					$ 556,900,000	$ 518,800,000	$ 489,800,000
Retained earnings	1,892,400,000				$ 2,064,400,000	1,892,400,000
Accounting Standards Update 2017-07
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Operating income	3,800,000	$ 3,800,000	$ 3,800,000	$ 3,700,000		15,100,000	$ 12,000,000
Scenario, Forecast \| Accounting Standards Update 2016-02
Accounts, Notes, Loans and Financing Receivable [Line Items]
Right-of-use assets								$ 100,000,000
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer returns as a percentage of gross sales					1.00%
Goodwill Annual Impairment Test [Abstract]
Useful life, intangible assets					5 years
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer returns as a percentage of gross sales					2.00%
Goodwill Annual Impairment Test [Abstract]
Useful life, intangible assets					30 years
Capitalized Computer Software Costs \| Minimum
Capitalized Computer Software, Net [Abstract]
Depreciable lives					3 years
Capitalized Computer Software Costs \| Maximum
Capitalized Computer Software, Net [Abstract]
Depreciable lives					5 years
Effect of Adoption Higher/(Lower) \| Accounting Standards Update 2014-09
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Retained earnings	$ (600,000)				$ 600,000	$ (600,000)
Joint Venture in Hong Kong
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ownership percentage					50.00%