Commitments And Contingencies (Tables)

3 Months Ended

Jul. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Schedule Of Deferred Revenue Related To The Peace Of Mind Program

Changes in deferred revenue balances related to our Peace of Mind (POM) program, the current portion of which is included in accounts payable, accrued expenses and other current liabilities and the long-term portion of which is included in other noncurrent liabilities in the consolidated balance sheets, are as follows:

(in 000s)
Three months ended July 31,	2013			2012
Balance, beginning of the period	$	146,286		$	141,080
Amounts deferred for new guarantees issued	737			573
Revenue recognized on previous deferrals	(27,826		)	(26,983		)
Balance, end of the period	$	119,197		$	114,670