Condensed Consolidated Statements Of Operations And Comprehensive Income (Loss) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Oct. 31, 2011	Oct. 31, 2010	Oct. 31, 2011	Oct. 31, 2010
Revenues:
Service revenues	$ 109,983	$ 99,840	$ 193,003	$ 181,355
Product and other revenues	9,290	9,253	16,553	17,416
Interest income	9,921	10,497	20,261	20,654
Total revenues	129,194	119,590	229,817	219,425
Expenses:
Compensation and benefits	61,438	61,859	108,659	120,764
Occupancy and equipment	86,551	88,318	170,054	171,188
Depreciation/ amortization of property and equipment	16,652	18,468	33,124	36,881
Provision for bad debt and loan losses	8,200	9,365	15,491	18,726
Interest	22,873	22,992	45,809	45,887
Other	31,899	30,973	67,060	64,204
Cost of revenues	227,613	231,975	440,197	457,650
Impairment of goodwill	4,257		4,257
Selling, general and administrative expenses	103,755	74,983	196,408	159,562
Total expenses	335,625	306,958	640,862	617,212
Operating loss	(206,431)	(187,368)	(411,045)	(397,787)
Other income, net	2,502	3,852	6,515	7,120
Loss from continuing operations before tax benefit	(203,929)	(183,516)	(404,530)	(390,667)
Income tax benefit	(80,916)	(72,072)	(162,362)	(151,415)
Net loss from continuing operations	(123,013)	(111,444)	(242,168)	(239,252)
Net income ( loss) from discontinued operations	(18,711)	2,395	(74,654)	(478)
Net loss	(141,724)	(109,049)	(316,822)	(239,730)
Basic and diluted loss per share:
Net loss from continuing operations	$ (0.41)	$ (0.36)	$ (0.80)	$ (0.77)
Net income (loss) from discontinued operations	$ (0.06)		$ (0.25)
Net loss	$ (0.47)	$ (0.36)	$ (1.05)	$ (0.77)
Basic and diluted shares	299,895	306,804	302,693	313,247
Dividends paid per share	$ 0.15	$ 0.15	$ 0.30	$ 0.30
Comprehensive income (loss):
Net loss	(141,724)	(109,049)	(316,822)	(239,730)
Change in unrealized gain on available-for-sale securities, net	905	(333)	1,880	(639)
Change in foreign currency translation adjustments	(9,238)	5,396	(8,754)	1,376
Comprehensive loss	$ (150,057)	$ (103,986)	$ (323,696)	$ (238,993)