Revenue (Tables)

9 Months Ended

Sep. 30, 2020

Revenue

Disaggregation of revenue

	For the Three Months Ended				For the Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Sales to do-it-yourself customers	$	1,869,079	$	1,473,514	$	5,067,676	$	4,244,689
Sales to professional service provider customers		1,264,802		1,151,721		3,510,031		3,303,987
Other sales and sales adjustments		73,757		41,293		198,013		118,334
Total sales	$	3,207,638	$	2,666,528	$	8,775,720	$	7,667,010