Initial principal amount of loans securitized.

No definition available.

Name:	hrb_InitialPrincipalAmountOfLoansSecuritized
Namespace Prefix:	hrb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Loans Sold To Trust, With Claims of Breach of Contract and Indemnity

+ References

No definition available.

+ Details

Name:	hrb_LoansSoldToTrustWithClaimsofBreachofContractandIndemnity
Namespace Prefix:	hrb_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Losses Related To Discontinued Operations, Percentage

+ References

No definition available.

+ Details

Name:	hrb_LossesRelatedToDiscontinuedOperationsPercentage
Namespace Prefix:	hrb_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Severance benefits claim.

+ References

No definition available.

+ Details

Name:	hrb_SeveranceBenefitsClaim
Namespace Prefix:	hrb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.25)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LitigationReserve
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of loss contingency liability expected to be resolved after one year or beyond the normal operating cycle, if longer.

+ References

+ Details

Name:	us-gaap_LossContingencyAccrualCarryingValueNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 9

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

+ Details

Name:	us-gaap_LossContingencyEstimateOfPossibleLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number of pending claims pertaining to a loss contingency.

+ References

+ Details

Name:	us-gaap_LossContingencyPendingClaimsNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

This is the principal amount outstanding for securitized loans only (across all types of loans).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=13989330&loc=d3e107314-111719

+ Details

Name:	us-gaap_PrincipalAmountOutstandingOnLoansSecuritized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Litigation And Related Contingencies (Details) (USD $)					9 Months Ended
Litigation And Related Contingencies (Details) (USD $)	Jan. 31, 2014	Apr. 30, 2013	Apr. 05, 2013 loan	Jan. 31, 2013	Jan. 31, 2014 Investigations, Legal Claims And Lawsuits	Jan. 31, 2014 Maximum Investigations, Legal Claims And Lawsuits	Jan. 31, 2014 Jeanne Drake, et al. v. Option One Mortgage Corp., et al [Member]	Jan. 31, 2014 ederal Home Loan Bank of Chicago v. Bank of America Funding Corporation, et al [Member] Pending Litigation [Member]	Oct. 15, 2010 ederal Home Loan Bank of Chicago v. Bank of America Funding Corporation, et al [Member] Pending Litigation [Member]	Apr. 30, 2013 MGRID LLC v. Merrill Lynch Mortgage Lending Inc [Member] lawsuit	Apr. 30, 2013 MGRID LLC v. Merrill Lynch Mortgage Lending Inc [Member] SCC [Member]	Apr. 30, 2013 MGRID LLC v. Merrill Lynch Mortgage Lending Inc [Member] SCC [Member] Claims with Knowledge of Outstanding Principal Amount [Member]
Loss Contingencies [Line Items]
Accrued obligations under indemnifications	$ 20,900,000	$ 11,900,000		$ 18,900,000
Liability for legal claims						33,000,000
Percentage of legal liability related to discontinued operations					21.00%
Claims for severance benefits							8,000,000
Initial principal on loans securitized									50,000,000
Principal outstanding on loans securitized								37,000,000
Loans Sold To Trust, With Claims of Breach of Contract and Indemnity			159
Number Of Lawsuits										18
Estimated Litigation Liability											$ 14,000,000,000	$ 4,000,000,000