Property, Plant and Equipment

3 Months Ended

Mar. 31, 2022

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

The components of Property, plant and equipment, net are as follows:

(in thousands)	March 31, 2022		December 31, 2021		March 31, 2021
Land	$	39,183	$	39,162	$	39,357
Land improvements and leasehold improvements	91,061		91,122		92,656
Buildings and storage facilities	369,850		368,577		379,245
Machinery and equipment	946,352		936,476		912,372
Construction in progress	23,512		20,676		16,108
	1,469,958		1,456,013		1,439,738
Less: accumulated depreciation	697,713		669,984		599,788
Property, plant and equipment, net	$	772,245	$	786,029	$	839,950

Depreciation expense on property, plant and equipment used in continuing operations was $28.3 million and $31.1 million for the three months ended March 31, 2022 and 2021, respectively.