Investments (Tables)

12 Months Ended

Apr. 30, 2015

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,	2015									2014
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Mortgage-backed securities	$	421,035	$	13,889	$	—		$	434,924	$	420,697	$	2,798	$	—	$	423,495
Municipal bonds	4,062		109		(24		)	4,147		4,120		209		—		4,329
Common stock	2,491		47		—			2,538		—		—		—		—
U.S. Treasury bills	100		—		—			100		—		—		—		—
	$	427,688	$	14,045	$	(24	)	$	441,709	$	424,817	$	3,007	$	—	$	427,824