Property, Plant and Equipment (Tables)

3 Months Ended

Jul. 31, 2018

Property, Plant and Equipment [Abstract]

Components Of Property, Plant And Equipment

The components of property, plant and equipment were:

	July 31,			April 30,
(in thousands)	2018			2018
Land	$	4,751		$	4,751
Buildings and improvements	113,139			112,757
Buildings and improvements - capital leases	11,202			11,202
Machinery and equipment	278,404			274,723
Machinery and equipment - capital leases	30,386			30,270
Construction in progress	12,133			10,931
	450,015			444,634
Less accumulated amortization and depreciation	(233,715		)	(226,532		)
Total	$	216,300		$	218,102