Debt Debt - TaxACT - HD Vest 2015 Credit Facility (Details)	12 Months Ended
Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Credit facility borrowed	$ 607,650,000	$ 253,190,000
TaxACT - HD Vest 2015 credit facility [Member]
Debt Instrument [Line Items]
Credit facility borrowed	400,000,000	$ 0
HD Vest [Member] \| TaxACT - HD Vest 2015 credit facility [Member]
Debt Instrument [Line Items]
Credit facility	425,000,000
Periodic payment, principal	5,000,000
Periodic payment, principle multiple	$ 1,000,000
Prepayment penalty	1.00%
HD Vest [Member] \| Revolving credit facility [Member] \| TaxACT - HD Vest 2015 credit facility [Member]
Debt Instrument [Line Items]
Credit facility	$ 25,000,000
Final maturity date of credit facility	Dec. 31, 2020
HD Vest [Member] \| Revolving credit facility [Member] \| TaxACT - HD Vest 2015 credit facility [Member] \| LIBOR Rate [Member]
Debt Instrument [Line Items]
Credit facility, variable interest rate	5.00%
HD Vest [Member] \| Revolving credit facility [Member] \| Line of credit [Member] \| TaxACT - HD Vest 2015 credit facility [Member]
Debt Instrument [Line Items]
Line of credit facility, borrowing capacity, multiple	$ 1,000,000
Credit facility, borrowing capacity (not less than)	2,000,000
HD Vest [Member] \| Term loan [Member] \| TaxACT - HD Vest 2015 credit facility [Member]
Debt Instrument [Line Items]
Credit facility borrowed	$ 400,000,000
Final maturity date of credit facility	Dec. 31, 2022
HD Vest [Member] \| Term loan [Member] \| TaxACT - HD Vest 2015 credit facility [Member] \| LIBOR Rate [Member]
Debt Instrument [Line Items]
Credit facility, interest rate, floor	0.01
Credit facility, variable interest rate	6.00%
HD Vest [Member] \| Swingline loans [Member] \| TaxACT - HD Vest 2015 credit facility [Member]
Debt Instrument [Line Items]
Credit facility	$ 500,000
Line of credit facility, borrowing capacity, multiple	$ 100,000
HD Vest [Member] \| Minimum [Member] \| Revolving credit facility [Member] \| TaxACT - HD Vest 2015 credit facility [Member] \| LIBOR Rate [Member]
Debt Instrument [Line Items]
Credit facility, variable interest rate	2.75%
HD Vest [Member] \| Minimum [Member] \| Term loan [Member] \| TaxACT - HD Vest 2015 credit facility [Member]
Debt Instrument [Line Items]
Principal payment percentage	0.625%
HD Vest [Member] \| Maximum [Member] \| Revolving credit facility [Member] \| TaxACT - HD Vest 2015 credit facility [Member] \| LIBOR Rate [Member]
Debt Instrument [Line Items]
Credit facility, variable interest rate	5.00%
HD Vest [Member] \| Maximum [Member] \| Term loan [Member] \| TaxACT - HD Vest 2015 credit facility [Member]
Debt Instrument [Line Items]
Principal payment percentage	1.875%

Debt Instrument, Interest Rate, Floor

No definition available.

Name:	bcor_DebtInstrumentInterestRateFloor
Namespace Prefix:	bcor_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Periodic Payment, Principal, Percent

+ References

No definition available.

+ Details

Name:	bcor_DebtInstrumentPeriodicPaymentPrincipalPercent
Namespace Prefix:	bcor_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Borrowing Capacity, Multiple

+ References

No definition available.

+ Details

Name:	bcor_LineofCreditFacilityBorrowingCapacityMultiple
Namespace Prefix:	bcor_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Periodic Payment, Principal multiple

+ References

No definition available.

+ Details

Name:	bcor_LineofCreditFacilityPeriodicPaymentPrincipalmultiple
Namespace Prefix:	bcor_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Long-term Debt, Prepayment Penalty, Percent

+ References

No definition available.

+ Details

Name:	bcor_LongtermDebtPrepaymentPenaltyPercent
Namespace Prefix:	bcor_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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

- Definition

Amount of the required periodic payment applied to principal.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityPeriodicPaymentPrincipal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=bcor_TaxACTHDVest2015CreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=bcor_HDVestMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=bcor_TermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=bcor_SwingLineLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: