Debt Instrument, Variable Rate Basis, Minimum

No definition available.

Name:	stbro_DebtInstrumentVariableRateBasisMinimum
Namespace Prefix:	stbro_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Repayment of Long-term Debt, Expected

+ References

No definition available.

+ Details

Name:	stbro_RepaymentofLongtermDebtExpected
Namespace Prefix:	stbro_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: 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=6584090&loc=d3e28878-108400

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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 210.5-02.22(a)(1))

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

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

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

- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

+ Details

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

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
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

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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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

Refinancing (Details) (USD $)			0 Months Ended
Refinancing (Details) (USD $)	Mar. 30, 2014 7.75% Senior Notes [Member]	Mar. 30, 2014 7.375% Senior Notes [Member]	May 12, 2014 Subsequent Event [Member] Term Loan A [Member]	May 12, 2014 Subsequent Event [Member] Term Loan A [Member] Eurodollar [Member]	May 12, 2014 Subsequent Event [Member] Term Loan B [Member]	May 12, 2014 Subsequent Event [Member] Term Loan B [Member] Eurodollar [Member]	May 12, 2014 Subsequent Event [Member] 7.75% Senior Notes [Member]	May 12, 2014 Subsequent Event [Member] 7.375% Senior Notes [Member]	May 12, 2014 Subsequent Event [Member] Revolving Credit Facility [Member]	May 12, 2014 Subsequent Event [Member] Revolving Credit Facility [Member] Eurodollar [Member]	Jun. 11, 2014 Subsequent Event [Member] Forecast [Member] 7.75% Senior Notes [Member]	Jun. 11, 2014 Subsequent Event [Member] Forecast [Member] 7.375% Senior Notes [Member]
Debt Instrument [Line Items]
Term of the loan			5 years		7 years				5 years
Debt Instrument, Face Amount			$ 325,000,000.0		$ 250,000,000.0
Revolving credit facility									150,000,000.0
Base rate				2.50%		3.75%				2.50%
Interest rate floor						1.00%
Repayment of debt							285,000,000	255,000,000	72,300,000
Debt instrument, interest rate	7.75%	7.375%					7.75%	7.375%
Redemption of senior notes											$ 285,000,000.0	$ 255,000,000.0