Net Sales (Tables)

6 Months Ended

Mar. 31, 2019

Revenue From Contract With Customer [Abstract]

Summary of Net Sales by Product Line and Geography

The following table presents the Company’s net sales by product line and geography for the three and six months ended March 31, 2019 (in thousands):

	Three Months Ended March 31, 2019						Six Months Ended March 31, 2019
	U.S.		Canada		Total		U.S.		Canada		Total
Residential roofing products	$	594,525	$	4,392	$	598,917	$	1,308,021	$	15,759	$	1,323,780
Non-residential roofing products		296,156		17,470		313,626		682,833		47,106		729,939
Complementary building products		515,721		773		516,494		1,094,443		2,551		1,096,994
Total net sales	$	1,406,402	$	22,635	$	1,429,037	$	3,085,297	$	65,416	$	3,150,713