Segments (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Schedule of net sales, adjusted EBITDA and certain other measures by reportable segment

The following tables present Net sales, Adjusted EBITDA and certain other measures for the reportable segment and total Company operations for the periods indicated. Adjusted EBITDA is used as a performance metric by the CODM in determining how to allocate resources and assess performance.

	Year Ended December 31, 2018									December 31, 2018
(in thousands)	Net Sales		Gross Profit		Depreciation & Amortization		Adjusted EBITDA			Total Assets
Geographic divisions	$	3,682,448	$	909,216	$	63,381	$	340,464		$	1,405,940
Other reconciling items	—		—		2,007		(74,585		)	170,171
	$	3,682,448	$	909,216	$	65,388				$	1,576,111

	Year Ended December 31, 2017									December 31, 2017
(in thousands)	Net Sales		Gross Profit		Depreciation & Amortization		Adjusted EBITDA			Total Assets
Geographic divisions	$	3,365,968	$	795,515	$	66,809	$	250,061		$	1,435,970
Other reconciling items	—		—		2,408		(50,058		)	37,380
	$	3,365,968	$	795,515	$	69,217				$	1,473,350

	Year Ended December 31, 2016									December 31, 2016
(in thousands)	Net Sales		Gross Profit		Depreciation & Amortization		Adjusted EBITDA			Total Assets
Geographic divisions	$	3,093,743	$	741,965	$	66,592	$	244,616		$	1,345,475
Other reconciling items	—		—		2,088		(50,726		)	49,539
	$	3,093,743	$	741,965	$	68,680				$	1,395,014

Reconciliation of geographic EBITDA to consolidated financial statements:

Reconciliation to consolidated financial statements:

	Year Ended December 31,
(in thousands)	2018			2017		2016
Income before income taxes	$	156,914		$	81,827	$	45,146
Interest expense	24,035			25,036		30,131
Interest income	(758		)	—		—
Depreciation and amortization	65,388			69,217		68,680
Merger and integration costs	3,998			15,336		15,340
Non-cash stock compensation expense	11,315			6,769		7,252
Impairment of assets	—			435		11,928
Inventory step-up charges	—			—		2,884
Loss on debt extinguishment	—			—		12,529
Sale of Coleman Floor (a)	656			—		—
Acquisition costs (b)	1,829			424		—
Other items (c)	2,502			959		—
Adjusted EBITDA of other reconciling items	74,585			50,058		50,726
Adjusted EBITDA of geographic divisions reportable segment	$	340,464		$	250,061	$	244,616

(a) For the year ended December 31, 2018, the amount represents the loss on sale of Coleman Floor as well as other expenses incurred related to the disposition.

(b) For the years ended December 31, 2018 and 2017, the amounts represent expenses incurred related to the acquisitions of Barefoot and Company (“Barefoot”), Locust Lumber, Shone Lumber, TexPly and Code Plus. For the year ended December 31, 2018, the amount also includes costs incurred related to the conversion of the enterprise resource planning system utilized by Shone Lumber.

(c) For the year ended December 31, 2018, the amount represents costs incurred in connection with the departure of the Company’s former chief executive officer and the search for and appointment of his permanent replacement. For the year ended December 31, 2017, the amount represents expense incurred related to pending litigation of $3.0 million and income related to the final settlement of insurance claims made by the Company for a fire at one of the Company’s facilities during 2015 of $2.0 million.

Net sales from external customers by main product lines

In accordance with the enterprise-wide disclosure requirements of the accounting standard, the Company’s net sales from external customers by main product lines are as follows for the years ended December 31, 2018, 2017 and 2016.

(in thousands)	2018		2017		2016
Structural components	$	622,105	$	522,619	$	461,761
Lumber & lumber sheet goods	1,286,481		1,114,219		938,563
Millwork, doors & windows	964,684		907,377		894,889
Other building products & services	809,178		821,753		798,530
Total net sales	$	3,682,448	$	3,365,968	$	3,093,743