Revenue - Disaggregation of Revenue (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Net sales		$ 7,656.1	$ 6,090.3	$ 5,764.6
Wholesalers [Member]
Disaggregation of Revenue [Line Items]
Net sales	[1]	3,517.2	2,720.6	2,682.8
Home Center retailers [Member]
Disaggregation of Revenue [Line Items]
Net sales	[2]	2,185.5	1,808.1	1,606.7
Other retailers [Member]
Disaggregation of Revenue [Line Items]
Net sales	[3]	440.6	345.6	304.8
Builder direct [Member]
Disaggregation of Revenue [Line Items]
Net sales		259.5	220.0	229.4
United States [Member]
Disaggregation of Revenue [Line Items]
Net sales		6,402.8	5,094.3	4,823.7
International [Member]
Disaggregation of Revenue [Line Items]
Net sales	[4]	$ 1,253.3	$ 996.0	$ 940.9

[1] Represents sales to customers whose business is oriented towards builders, professional trades and home remodelers, inclusive of sales through our customers’ respective internet website portals.

[2] Represents sales to the three largest “Do-It-Yourself” retailers; The Home Depot, Inc., Lowes Companies, Inc. and Menards, Inc., inclusive of sales through their respective internet website portals.

[3] Represents sales principally to our mass merchant and standalone independent e-commerce customers.

[4] Represents sales in markets outside the United States, principally in China, Canada, Europe and Mexico.