Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 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)	March 31, 2021		December 31, 2020		March 31, 2020
Land	$	39,874	$	40,222	$	40,336
Land improvements and leasehold improvements	96,901		96,700		95,327
Buildings and storage facilities	388,075		387,992		381,258
Machinery and equipment	939,123		925,074		861,812
Construction in progress	16,396		19,725		41,824
	1,480,369		1,469,713		1,420,557
Less: accumulated depreciation	622,100		590,534		498,972
Property, plant and equipment, net	$	858,269	$	879,179	$	921,585

Components of railcar assets leased to others

The components of Rail assets leased to others are as follows:

(in thousands)	March 31, 2021		December 31, 2020		March 31, 2020
Rail assets leased to others	$	737,862	$	750,473	$	740,809
Less: accumulated depreciation	157,263		158,527		143,740
Rail assets, net	$	580,599	$	591,946	$	597,069