Loss Per Share And Stockholders' Equity (Tables)

9 Months Ended

Jan. 31, 2013

Earnings Per Share And Equity [Line Items]

Computation Of Basic And Diluted Loss Per Share From Continuing Operations

						(in 000s, except per share amounts)
		Three months ended January 31,				Nine months ended January 31,
		2013		2012		2013		2012
Net loss from continuing operations
attributable to shareholders	$	(16,915)	$	(3,567)	$	(223,764)	$	(245,735)
Income (loss) allocated to participating securities (nonvested shares)		62		(24)		199		152
Net loss from continuing operations attributable to common shareholders	$	(16,977)	$	(3,543)	$	(223,963)	$	(245,887)
Basic weighted average common shares		271,542		292,963		273,281		299,450
Potential dilutive shares		-		-		-		-
Dilutive weighted average common shares		271,542		292,963		273,281		299,450
Loss per share from continuing operations:
Basic	$	(0.06)	$	(0.01)	$	(0.82)	$	(0.82)
Diluted		(0.06)		(0.01)		(0.82)		(0.82)

Common Stock Retired [Member]

Earnings Per Share And Equity [Line Items]

Allocation Of Cost Of Shares Retired To Components Of Stockholders' Equity

				(in 000s)
Nine months ended January 31,		2013		2012
Common stock	$	213	$	130
Additional paid-in capital		12,542		7,826
Retained earnings		302,245		169,548
	$	315,000	$	177,504

Treasury Stock Retired [Member]

Earnings Per Share And Equity [Line Items]

Allocation Of Cost Of Shares Retired To Components Of Stockholders' Equity

		(in 000s)
Common stock	$	600
Additional paid-in capital		35,400
Retained earnings		1,104,797
Total cost allocated		1,140,797
Less cost of treasury shares retired		(1,140,797)
Net impact on consolidated stockholders' equity	$	-