Investments In Available-For-Sale Securities (Tables)

3 Months Ended

Jul. 31, 2012

Investments In Available-For-Sale Securities [Abstract]

Amortized Cost And Fair Value Of Securities Available-For-Sale


																	(in 000s)
As of	July 31, 2012									April 30, 2012
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses⁽¹⁾			Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses⁽¹⁾			Fair Value
Short-term:
Municipal bonds	$	1,006	$	20	$	—		$	1,026	$	1,008	$	29	$	—		$	1,037
Long-term:
Mortgage-backed securities		370,318		5,898		(78	)		376,138		361,184		5,620		(121	)		366,683
Municipal bonds		4,221		406		—			4,627		4,236		396		—			4,632

		374,539		6,304		(78	)		380,765		365,420		6,016		(121	)		371,315

Total	$	375,545	$	6,324	$	(78	)	$	381,791	$	366,428	$	6,045	$	(121	)	$	372,352

⁽¹⁾

At July 31, 2012, mortgage-backed securities with a cost of $7.9 million and gross unrealized losses of $5 thousand had been in a continuous loss position for more than twelve months. At April 30, 2012, mortgage-backed securities with a cost of $8.1 million and gross unrealized losses of $21 thousand had been in a continuous loss position for more than twelve months.

Contractual Maturities Of AFS Debt Securities At Varying Dates Over The Next 30 Years


			(in 000s)
As of July 31, 2012	Cost Basis		Fair Value
Maturing in:
Less than one year	$	1,006	$	1,026
Two to five years		4,221		4,627
Beyond		370,318		376,138

	$	375,545	$	381,791