Regulatory Capital Requirements (Narrative) (Details)	Sep. 30, 2014		Mar. 31, 2014		Sep. 30, 2013		Oct. 31, 2014 HRB Bank [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Tier 1 capital ratio (leverage)	54.30%	[1]	32.10%	[1]	40.40%	[1]	53.80%

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