Summary Of Significant Accounting Policies (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended	3 Months Ended	9 Months Ended
	Jan. 31, 2012	Jan. 31, 2011	Jan. 31, 2012	Jan. 31, 2011	Jan. 31, 2012 RSM McGladrey, Inc. [Member]	Jul. 31, 2011 RSM McGladrey, Inc. [Member]	Jan. 31, 2012 RSM McGladrey, Inc. [Member]	Jul. 31, 2011 RSM EquiCo, Inc. [Member]	Jan. 31, 2012 RSM EquiCo, Inc. [Member]
Summary Of Significant Accounting Policies [Line Items]
Cash proceeds total, discontinued operation					$ 495,600,000		$ 495,600,000
Short-term receivable, discontinued operation					32,300,000		32,300,000
Note receivable, discontinued operation					54,000,000		54,000,000
Loss on sale of discontinued operation, net of tax							37,100,000		12,400,000
Agreement to sell assets of discontinued operation					1,000,000
Impairment of goodwill		22,700,000	4,257,000	22,700,000		85,400,000		14,300,000
Tax benefit from the loss on sale of discontinued operations	$ (20,260,000)		$ (59,969,000)						$ 20,500,000