Property, Plant and Equipment

3 Months Ended

Jul. 31, 2021

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

The components of property, plant and equipment were:

	July 31,		April 30,
(in thousands)	2021		2021
Land	$	4,431	$	4,431
Buildings and improvements	116,851		116,103
Buildings and improvements - finance leases	11,636		11,636
Machinery and equipment	318,651		315,371
Machinery and equipment - finance leases	31,912		31,386
Construction in progress	30,150		22,669
	513,631		501,596
Less accumulated amortization and depreciation	(306,699)		(297,594)
Total	$	206,932	$	204,002

Amortization and depreciation expense on property, plant and equipment amounted to $9.6 million and $11.6 million for the three months ended July 31, 2021 and 2020, respectively. The three months ended July 31, 2020 includes accelerated depreciation expense of $1.1 million related to the closure of the plant located in Humboldt, Tennessee. Accumulated amortization on finance leases included in the above table amounted to $33.5 million and $33.0 million as of July 31, 2021 and April 30, 2021, respectively.