Investments (Tables)

12 Months Ended

Apr. 30, 2013

Investments, Debt and Equity Securities [Abstract]

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

The amortized cost and fair value of securities classified as AFS are summarized below:

(in 000s)
As of April 30,	2013									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	$	—	$	—	$	—		$	—	$	1,008	$	29	$	—		$	1,037
Long-term:
Mortgage-backed securities	476,450		6,592		(664		)	482,378		361,184		5,620		(121		)	366,683
Municipal bonds	4,178		320		—			4,498		4,236		396		—			4,632
	480,628		6,912		(664		)	486,876		365,420		6,016		(121		)	371,315
	$	480,628	$	6,912	$	(664	)	$	486,876	$	366,428	$	6,045	$	(121	)	$	372,352

⁽¹⁾  As of April 30, 2013, we had no securities that had been in a continuous loss position for more than twelve months. As of 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

Contractual maturities of AFS debt securities at April 30, 2013, occur at varying dates over the next 31 years, and are set forth in the table below.

(in 000s)
As of April 30, 2013	Cost Basis		Fair Value
Maturing in:
Two to five years	$	4,178	$	4,498
Beyond	476,450		482,378
	$	480,628	$	486,876