Revenue (Tables)

12 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Abstract]

Schedule of New Accounting Pronouncements

Consolidated Balance Sheet

	As of December 31, 2018
	As Reported		Balance without Adoption		Effect of Change
Merchandise inventory	$	658.7	$	668.2	$	(9.5	)
Other current assets	54.1		54.4		(0.3		)
Other non-current liabilities	8.7		19.4		(10.7		)
Retained earnings	678.1		677.2		0.9

Consolidated Statements of Income

	For the Year Ended December 31, 2018
	As Reported		Balance without Adoption		Effect of Change
Net sales	$	7,202.5	$	7,202.3	$	0.2
Cost of merchandise sold	5,821.6		5,821.6		—

Disaggregation of Revenue

The following table summarizes the percentages of our net sales attributable to each of our vertical markets for the years ended December 31, 2018 and 2017:

	For the Years Ended  December 31,
	2018		2017
Construction	59.6	%	59.6	%
Industrial & Utility	21.3		21.7
CIG	19.1		18.7
Total net sales	100.0	%	100.0	%