Property, Plant and Equipment

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

6 Property, Plant and Equipment

Property, plant and equipment consist of the following (in thousands):


	December 31,
	2021			2020
Land and land improvements	$	36,428		$	36,884
Buildings and leasehold improvements		446,061			376,705
Production and other equipment		621,792			588,625
Construction in progress		117,148			125,925

Total property, plant and equipment		1,221,429			1,128,139
Less: accumulated depreciation and amortization		(673,516	)		(634,136	)

Property, plant and equipment, net	$	547,913		$	494,003

In February 2018, the Company’s Board of Directors approved expanding its precision chemistry consumable manufacturing operations in the United States. The Company has incurred costs of $200 million to build and equip this new state-of-the-art manufacturing facility as of December 31, 2021, and anticipates spending approximately $50 million to complete the facility in 2022.

During 2021, 2020 and 2019, the Company retired and disposed of approximately $23 million, $19 million and $11 million of property, plant and equipment, respectively, most of which was fully depreciated and no longer in use. Gains or losses on disposals were immaterial for the years ended December 31, 2021, 2020 and 2019.