Goodwill And Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
	Jul. 31, 2011	Apr. 30, 2013 item	Apr. 30, 2012	Apr. 30, 2011
Goodwill and Intangible Assets [Line Items]
Number of offices closed		200
Impairment of goodwill	$ 99,700,000	$ 0	$ 7,409,000	$ 22,700,000
Amortization of intangible assets		24,200,000	27,800,000	29,500,000
Estimated amortization, 2014		22,100,000
Estimated amortization, 2015		18,200,000
Estimated amortization, 2016		14,800,000
Estimated amortization, 2017		12,300,000
Estimated amortization, 2018		11,300,000
ExpressTax Brand
Goodwill and Intangible Assets [Line Items]
Impairment of goodwill		7,400,000
Impairment of intangible assets			4,000,000
Red Gear
Goodwill and Intangible Assets [Line Items]
Impairment of goodwill			22,700,000
Customer Relationships | Red Gear
Goodwill and Intangible Assets [Line Items]
Impairment of intangible assets		$ 3,600,000