Multi-employer Plans (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Multiemployer Plans [Line Items]
Entity Tax Identification Number	91-0351110
COMPANY CONTRIBUTIONS	$ 43.2	$ 37.8	$ 32.8
Metal and Electrical Engineering Industry Pension Fund
Multiemployer Plans [Line Items]
PENSION PLAN NUMBER	135668
SURCHARGE	Yes
COMPANY CONTRIBUTIONS	$ 38.1	33.9	27.8
Western Metal Industry Pension Plan
Multiemployer Plans [Line Items]
PENSION PLAN NUMBER	001
SURCHARGE	Yes
Entity Tax Identification Number	91-6033499
COMPANY CONTRIBUTIONS	$ 4.0	3.0	3.8
Other Plans
Multiemployer Plans [Line Items]
COMPANY CONTRIBUTIONS	$ 1.1	$ 0.9	$ 1.2