Goodwill And Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
	Jul. 31, 2011	Apr. 30, 2012 item	Apr. 30, 2011	Apr. 30, 2010
Goodwill and Intangible Assets [Line Items]
Number of offices closed		200
Impairment of goodwill	$ 99,700,000	$ 7,409,000	$ 22,700,000
Amortization of intangible assets		19,800,000	17,900,000	18,400,000
Estimated amortization, 2013		16,500,000
Estimated amortization, 2014		14,600,000
Estimated amortization, 2015		11,300,000
Estimated amortization, 2016		10,800,000
Estimated amortization, 2017		10,200,000
ExpressTax Brand [Member]
Goodwill and Intangible Assets [Line Items]
Impairment of goodwill		7,400,000
Red Gear [Member]
Goodwill and Intangible Assets [Line Items]
Impairment of goodwill			22,700,000
Customer Relationships [Member] | ExpressTax Brand [Member]
Goodwill and Intangible Assets [Line Items]
Impairment of intangible assets		$ 4,000,000