Property, Plant and Equipment (Tables)

9 Months Ended

Jan. 31, 2019

Property, Plant and Equipment [Abstract]

Components Of Property, Plant And Equipment

The components of property, plant and equipment were:

	January 31,			April 30,
(in thousands)	2019			2018
Land	$	4,751		$	4,751
Buildings and improvements	113,892			112,757
Buildings and improvements - capital leases	11,202			11,202
Machinery and equipment	287,065			274,723
Machinery and equipment - capital leases	30,391			30,270
Construction in progress	12,599			10,931
	459,900			444,634
Less accumulated amortization and depreciation	(247,923		)	(226,532		)
Total	$	211,977		$	218,102