Property, Plant and Equipment

12 Months Ended

Apr. 30, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

The components of property, plant and equipment were:

	APRIL 30
(in thousands)	2019			2018
Land	$	4,751		$	4,751
Buildings and improvements	114,421			112,757
Buildings and improvements - capital leases	11,202			11,202
Machinery and equipment	294,993			274,723
Machinery and equipment - capital leases	30,574			30,270
Construction in progress	7,002			10,931
	462,943			444,634
Less accumulated amortization and depreciation	(254,680		)	(226,532		)
Total	$	208,263		$	218,102

Amortization and depreciation expense on property, plant and equipment amounted to $36.2 million, $21.9 million and $14.2 million in fiscal years 2019, 2018 and 2017, respectively.  Accumulated amortization on capital leases included in the above table amounted to $30.8 million and $30.0 million as of April 30, 2019 and 2018, respectively.