Property, Plant and Equipment

6 Months Ended

Oct. 31, 2021

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

The components of property, plant and equipment were:

	October 31,		April 30,
(in thousands)	2021		2021
Land	$	4,431	$	4,431
Buildings and improvements	117,566		116,103
Buildings and improvements - finance leases	11,636		11,636
Machinery and equipment	326,474		315,371
Machinery and equipment - finance leases	31,232		31,386
Construction in progress	32,096		22,669
	523,435		501,596
Less accumulated amortization and depreciation	(314,739)		(297,594)
Total	$	208,696	$	204,002

Amortization and depreciation expense on property, plant and equipment amounted to $9.4 million and $10.6 million for the three months ended October 31, 2021 and 2020, respectively, and $19.1 million and $22.2 million for the six months ended October 31, 2021 and 2020, respectively. The three and six months ended October 31, 2020 includes accelerated depreciation expense of $0.2 million and $1.3 million, respectively, related to the closure of the plant located in Humboldt, Tennessee. Accumulated amortization on finance leases included in the above table amounted to $32.9 million and $33.0 million as of October 31, 2021 and April 30, 2021, respectively.