Summary of Segment Results from Continuing Operations (Detail) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) Segment	Jun. 30, 2016 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments \| Segment			4
Net sales	$ 989.3	$ 958.9	$ 1,949.6	$ 1,897.3
Total Sales	1,062.9	1,052.4	2,101.8	2,098.5
EBIT	122.3	146.5	238.2	273.6
Residential Products
Segment Reporting Information [Line Items]
Net sales	407.8	408.0	799.1	798.2
Total Sales	412.0	412.2	808.1	807.3
EBIT	50.2	52.2	92.7	85.3
Furniture Products
Segment Reporting Information [Line Items]
Net sales	267.2	235.6	532.0	486.9
Total Sales	271.6	252.9	542.7	525.2
EBIT	20.3	24.6	40.6	56.1
Industrial Materials
Segment Reporting Information [Line Items]
Net sales	75.9	79.9	145.7	157.0
Total Sales	139.2	150.1	274.6	307.3
EBIT	7.1	13.0	15.9	33.1
Specialized Products
Segment Reporting Information [Line Items]
Net sales	238.4	235.4	472.8	455.2
Total Sales	240.1	237.2	476.4	458.7
EBIT	44.1	54.7	87.1	98.2
Intersegment eliminations
Segment Reporting Information [Line Items]
Net sales	73.6	93.5	152.2	201.2
Intersegment eliminations and other	0.6	2.0	(1.9)	(0.9)
Intersegment eliminations \| Residential Products
Segment Reporting Information [Line Items]
Net sales	4.2	4.2	9.0	9.1
Intersegment eliminations \| Furniture Products
Segment Reporting Information [Line Items]
Net sales	4.4	17.3	10.7	38.3
Intersegment eliminations \| Industrial Materials
Segment Reporting Information [Line Items]
Net sales	63.3	70.2	128.9	150.3
Intersegment eliminations \| Specialized Products
Segment Reporting Information [Line Items]
Net sales	$ 1.7	$ 1.8	$ 3.6	$ 3.5

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Amount of income (loss) from continuing operations, nonoperating income (expense) and income (loss) from equity method investments, before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of interest income (expense).

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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