Property, Plant and Equipment (Tables)

9 Months Ended

Sep. 30, 2021

Property, Plant and Equipment [Abstract]

Components of property, plant and equipment

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

(in thousands)	September 30, 2021		December 31, 2020		September 30, 2020
Land	$	39,159	$	39,704	$	39,705
Land improvements and leasehold improvements	89,941		92,455		92,138
Buildings and storage facilities	368,678		379,195		375,715
Machinery and equipment	920,232		898,557		881,617
Construction in progress	24,556		19,473		20,936
	1,442,566		1,429,384		1,410,111
Less: accumulated depreciation	644,906		569,073		539,960
Property, plant and equipment, net	$	797,660	$	860,311	$	870,151