Additional proceeds from sale and collection of receivables.

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Excess tax benefit per share from financing activities

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Excess tax benefit per share from operating activities.

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- Definition

Percentage of stock dividend payable on stock split of common stock.

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- Definition

Significant accounting policies.

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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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-Name Accounting Standards Codification
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-Section S99
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- Definition

Date the declared dividend will be paid, in CCYY-MM-DD format.

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Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

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No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

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Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

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- Definition

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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No definition available.

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Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.

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Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

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The percentage of LIFO (last in first out) inventory to total inventory as of the balance sheet date if other than 100 percent.

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No definition available.

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The cash inflow associated with the proceeds from sale and collection of receivables during the period.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

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Significant Accounting Policies - Additional Information (Details) $ / shares in Units, $ in Millions		12 Months Ended
	Aug. 04, 2016	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($)	Mar. 31, 2018 USD ($)	May 08, 2017 shares
Significant Accounting Policies [Line Items]
Common Stock, Authorized \| shares		600,000,000	300,000,000			600,000,000
Excess tax benefit from operating activities		$ 0.0	$ 30.0	$ 15.8
Excess tax benefit on stock options exercised		$ 0.0	30.0	15.8
Common stock split ratio	2
Stock dividend payable percentage of common stock	100.00%
Stock dividend payable date		Sep. 01, 2016
Stock dividend record date		Aug. 15, 2016
Additional proceed from sale of accounts receivable		$ 45.3
Proceed from sale of accounts receivable		$ 105.4	$ 60.1
Percentage of inventory determined using LIFO		17.00%	20.00%
Adjustments to reflect inventory at net realizable value		$ 12.8	$ 10.5
Research and development expenses		$ 70.8	$ 63.2	$ 64.7
Scenario, Forecast
Significant Accounting Policies [Line Items]
Cumulative adjustment to retained earnings (net of tax)					$ 2.0
Minimum
Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life (years)		3 years
Minimum \| Building and Building Improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life		9 years
Minimum \| Machinery and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life		3 years
Minimum \| Office Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life		3 years
Maximum
Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life (years)		20 years
Maximum \| Software
Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life (years)		10 years
Maximum \| Building and Building Improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life		40 years
Maximum \| Machinery and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life		20 years
Maximum \| Office Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life		10 years
ASU 2016-09
Significant Accounting Policies [Line Items]
Excess tax benefit from operating activities		$ 15.1
Excess tax benefit per share from operating activities \| $ / shares		$ 0.05
Excess tax benefit on stock options exercised		$ 15.1
Excess tax benefit per share from financing activities \| $ / shares		$ 0.05
Armand Products Company
Significant Accounting Policies [Line Items]
Percentage of ownership interest		50.00%	50.00%	50.00%
ArmaKleen Company
Significant Accounting Policies [Line Items]
Percentage of ownership interest		50.00%	50.00%	50.00%
Natronx Technologies LLC
Significant Accounting Policies [Line Items]
Percentage of ownership interest		33.33%	33.33%	33.33%