Product Warranty (Tables)

9 Months Ended

Jan. 31, 2015

Product Warranties Disclosures [Abstract]

Schedule Of Warranty Liability

The following is a reconciliation of the Company’s warranty liability, which is included in other accrued expenses on the balance sheet: 

	Nine Months Ended
	January 31,
(in thousands)	2015			2014
Beginning balance at May 1	$	1,910		$	1,795
Accrual	10,818			8,447
Settlements	(10,380		)	(8,607		)
Ending balance at January 31	$	2,348		$	1,635