Property, Plant and Equipment (Tables)

12 Months Ended

Apr. 30, 2018

Property, Plant and Equipment [Abstract]

Components Of Property, Plant And Equipment

The components of property, plant and equipment were:

	APRIL 30
(in thousands)	2018			2017
Land	$	4,751		$	3,581
Buildings and improvements	112,757			81,172
Buildings and improvements - capital leases	11,202			11,202
Machinery and equipment	274,723			187,836
Machinery and equipment - capital leases	30,270			29,378
Construction in progress	10,931			10,838
	444,634			324,007
Less accumulated amortization and depreciation	(226,532		)	(216,074		)
Total	$	218,102		$	107,933