Property, Plant and Equipment Property, Plant and Equipment

12 Months Ended

Dec. 31, 2020

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment, net

Property, plant and equipment consisted of the following:


	December 31,
(in thousands)	2020		2019
Land	$	28,553	$	28,092
Buildings and site improvements	203,421		195,210
Leasehold improvements	7,091		4,911
Machinery and equipment	372,923		351,379
	611,988		579,592
Less accumulated depreciation and amortization	(377,460)		(346,594)
	234,528		232,998
Capital projects in progress	20,656		16,014
	$	255,184	$	249,012

Property, plant and equipment as of December 31, 2020 and 2019, includes fully depreciated assets with an original cost of $200.5 million and $211.2 million, respectively. These fully depreciated assets are still in use in the Company’s operations. The Company capitalizes certain development costs associated with internal use software, including the direct costs of services provided by third-party consultants and payroll for internal employees, both of which are performing development and implementation activities on a software project. As of December 31, 2020 and 2019, the Company had capitalized software development costs net of accumulated amortization of $29.4 million and $28.6 million, respectively, included in Machinery and equipment and as of December 31, 2020 and 2019, $5.5 million and $3.2 million, respectively, was included in capital projects in progress.

In November 2019, the Company sold its selling and distribution facility in British Columbia, Canada for approximately $9.5 million in net proceeds after closing costs and sale price adjustments, which resulted in an estimated gain on disposal of fixed assets of $5.6 million.

Depreciation expense, including depreciation of equipment and amortization of internally developed software and software acquired through capital lease arrangements, was $32.1 million, $32.6 million and $33.3 million for the years ended December 31, 2020, 2019 and 2018, respectively.