Regulatory Capital Requirements Of HRB Bank (Narrative) (Details) (USD $)	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2012	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012	Apr. 30, 2011
Assets Sold under Agreements to Repurchase [Line Items]
Stockholders' Equity Attributable to Parent	$ 1,556,549,000	$ 1,263,547,000	$ 1,325,892,000						$ 1,449,574,000
Leverage ratio	0.413
Total risk-based capital ratio, well capitalized				10.00%	[1]	10.00%	[1]	10.00%
Tier 1 Risk-based capital ratio				6.00%	[2]	6.00%	[2]	6.00%
Tier 1 Risk-based leverage ratio				5.00%	[3]	5.00%	[3]	5.00%
Minimum leverage capital per calendar quarter	12.00%
Capital Contribution For Capital Adequacy			400,000,000
Dividend and return of capital		400,000,000
HRB Bank [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Stockholders' Equity Attributable to Parent	$ 585,000,000

[1] Total risk-based capital divided by risk-weighted assets.

[2] Tier 1 (core) capital less deduction for low-level recourse and residual interest divided by risk-weighted assets.

[3] Tier 1 (core) capital divided by adjusted total assets.