Revenue (Tables)

6 Months Ended

Jun. 30, 2021

Revenue [Abstract]

Disaggregation of Revenue

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Construction	58.3	%	58.0	%	58.4	%	57.9	%
CIG	26.0		27.2		25.8		26.9
Industrial & Utility	15.7		14.8		15.8		15.2
Total net sales	100.0	%	100.0	%	100.0	%	100.0	%