Regulatory Capital Requirements Of HRB Bank (Narrative) (Details)	Jun. 30, 2013		Mar. 31, 2013		Jun. 30, 2012		Jul. 31, 2013 HRB Bank [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Tier 1 capital ratio (leverage)	36.90%	[1]	25.50%	[1]	38.70%	[1]	38.20%

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