Revenue Revenue (Tables)

12 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Abstract]

Impact of adoption of topic 606

The following table reflects the cumulative impact of adoption of Topic 606. As the cumulative impact of adopting Topic 606 on the Company’s historical results of operations was less than $0.1 million, the Company did not record an adjustment to opening retained earnings as of January 1, 2018.

(in thousands)	December 31, 2017		Adoption of Topic 606			January 1, 2018
Accounts receivable, net of allowances	$	322,892	$	(8,884	)	$	314,008
Inventories, net	309,060		(3,128		)	305,932
Contract assets	—		38,557			38,557
Costs in excess of billings on uncompleted contracts	28,738		(28,738		)	—
Prepaid expenses and other current assets	57,949		3,128			61,077
Total assets	1,473,350		935			1,474,285
Accrued expenses and other liabilities	96,262		(6,967		)	89,295
Contract liabilities	—		26,330			26,330
Billings in excess of costs on uncompleted contracts	18,428		(18,428		)	—
Total liabilities	726,451		935			727,386
Total liabilities and stockholders’ equity	$	1,473,350	$	935		$	1,474,285

The following table reflects the impact of adoption of Topic 606 on the Company’s financial position as of December 31, 2018.

(in thousands)	Balances without Adoption of Topic 606		Adjustments			As Reported
Accounts receivable, net of allowances	$	306,600	$	(8,160	)	$	298,440
Inventories, net	312,055		(2,776		)	309,279
Contract assets	—		32,348			32,348
Costs in excess of billings on uncompleted contracts	23,769		(23,769		)	—
Prepaid expenses and other current assets	53,473		2,776			56,249
Total assets	1,575,692		419			1,576,111
Accrued expenses and other liabilities	120,118		(9,842		)	110,276
Contract liabilities	—		34,888			34,888
Billings in excess of costs on uncompleted contracts	24,627		(24,627		)	—
Total liabilities	701,033		419			701,452
Total liabilities and stockholders’ equity	$	1,575,692	$	419		$	1,576,111

Disaggregation of revenue

The following table reflects the Company’s estimate of net sales by each customer type for the years ended December 31, 2018, 2017 and 2016. Certain previously reported amounts for interim periods during the year ended December 31, 2018 and for the year ended December 31, 2017 were revised in the table below. The revisions were not material to the previously issued financial statements.

	Year Ended December 31,
(in thousands)	2018		2017		2016
Single-family homebuilders	$	2,814,100	$	2,526,837	$	2,262,124
Remodeling contractors	427,346		380,460		371,018
Multi-family, commercial & other contractors	441,002		458,671		460,601
Total net sales	$	3,682,448	$	3,365,968	$	3,093,743

Contract assets and liabilities

The following table reflects the Company’s contract balances as of December 31, 2018 and January 1, 2018, the date that the Company adopted Topic 606:

(in thousands)	December 31, 2018		January 1, 2018		Change
Receivables, including unbilled receivables presented in prepaid expenses and other current assets	$	306,370	$	321,418	$	(15,048	)
Contract assets	32,348		38,557		(6,209		)
Contract liabilities	$	34,888	$	26,330	$	8,558