Regulatory Requirements (HRB Bank's Regulatory Capital Requirements) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2011		Mar. 31, 2010
Regulatory Requirements
Total risk-based capital ratio	$ 405,000	[1]	$ 420,401	[1]
Total risk-based capital ratio, ratio	92.50%	[1]	75.70%	[1]
Total risk-based capital ratio, for capital adequacy	35,019	[1]	44,436	[1]
Total risk-based capital ratio, for capital adequacy, ratio	8.00%	[1]	8.00%	[1]
Total risk-based capital ratio, to be well capitalized	43,773	[1]	55,545	[1]
Total risk-based capital ratio, to be well capitalized, ratio	10.00%	[1]	10.00%	[1]
Tier 1 risk-based capital ratio	399,187	[2]	413,074	[2]
Tier 1 risk-based capital ratio, ratio	91.20%	[2]	74.40%	[2]
Tier 1 risk-based capital ratio, to be well capitalized	26,264	[2]	33,327	[2]
Tier 1 risk-based capital ratio, to be well capitalized, ratio	6.00%	[2]	6.00%	[2]
Tier 1 capital ratio (leverage)	399,187	[3]	413,074	[3]
Tier 1 capital ratio (leverage), ratio	22.80%	[3]	24.90%	[3]
Tier 1 capital ratio (leverage), for capital adequacy	209,758	[3]	199,272	[3]
Tier 1 capital ratio (leverage), for capital adequacy, ratio	12.00%	[3]	12.00%	[3]
Tier 1 capital ratio (leverage), to be well capitalized	87,399	[3]	83,030	[3]
Tier 1 capital ratio (leverage), to be well capitalized, ratio	5.00%	[3]	5.00%	[3]
Tangible equity ratio	399,187	[4]	413,074	[4]
Tangible equity ratio, ratio	22.80%	[4]	24.90%	[4]
Tangible equity ratio, for capital adequacy	$ 26,220	[4]	$ 24,909	[4]
Tangible equity ratio, for capital adequacy, ratio	1.50%	[4]	1.50%	[4]

[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.

[4] Tangible capital divided by tangible assets.