Segments

Segment information is presented in accordance with ASC 280, Segment Reporting, which establishes standards for reporting information about operating segments. It also establishes standards for related disclosures about customers, products and geographical areas. Operating segments are defined as components of an enterprise that engage in business activities that earn revenues, incur expenses and prepare separate financial information that is evaluated regularly by the Company’s Chief Operating Decision Maker ("CODM") in order to allocate resources and assess performance. Resources are allocated and performance is assessed by the CODM.

Based on the provisions of ASC 280, the Company has defined its operating segments by considering management structure and product offerings. This evaluation resulted in one operating and reportable segment.

As discussed in Note 3, Discontinued Operations, the Company closed the sale of the Disposed Business on November 1, 2018, which was previously reported as the Mechanical Insulation segment. The previously reported amounts for the Mechanical Insulation segment have been reclassified to discontinued operations for all periods presented. The Company’s continuing operations now consist of what was previously reported as the Specialty Building Products segment for all periods presented.

Revenues are attributed to each country based on the location in which sales originate and in which assets are located. The Company generates the majority of its revenue in the United States with the remainder being generated in Canada. For the year ended December 31, 2019, 90.2% and 9.8% of the Company's revenue was generated in the United States and Canada, respectively. For the year ended December 31, 2018, 89.1% and 10.9% of the Company's revenue was generated in the United States and Canada, respectively.

For the years ended December 31, 2019 and 2018, no customer comprised more than 10% of net sales.

The following table sets forth property, plant and equipment, goodwill and intangibles by geographical area (in thousands):



	December 31,
	2019		2018
Property, plant and equipment, net
United States	$	135,907	$	137,252
Canada	14,281		14,389
Total property, plant and equipment, net	$	150,188	$	151,641
Right-of-use assets, net
United States	$	104,938	$	—
Canada	15,624		—
Total right-of-use assets, net	$	120,562	$	—
Goodwill
United States	$	463,208	$	460,384
Canada	32,516		24,557
Total goodwill	$	495,724	$	484,941
Intangibles, net
United States	$	102,563	$	141,186
Canada	11,298		4,690
Total intangibles, net	$	113,861	$	145,876

The Company’s net sales by major product line are as follows (in thousands):



	Year Ended December 31,								Change
	2019				2018				$		%

Wallboard	$	817,799	38.0	%	$	781,257	38.2	%	$	36,542	4.7	%
Suspended ceiling systems	413,674		19.2	%	379,809		18.6	%	33,865		8.9	%
Metal framing	392,630		18.2	%	361,493		17.7	%	31,137		8.6	%
Complementary and other products	530,427		24.6	%	521,753		25.5	%	8,674		1.7	%
Total net sales	$	2,154,530	100.0	%	$	2,044,312	100.0	%	$	110,218	5.4	%