Twelve Point Five Percent Senior Secured Notes due Twenty Seventeen (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Feb. 07, 2012
12.5% Senior Secured Notes due 2017 (Textual) [Abstract]
Aggregate principal amount of the notes	25.00%sbsa_AggregatePrincipalAmountOfNotes
Covenants, maximum unpaid principal payment	15
Debt instrument payment period	60 days
Twelve Point Five Percentage Senior Secured Notes Due Two Thousand Seventeen
12.5% Senior Secured Notes due 2017 (Textual) [Abstract]
Notes issued principal amount		$ 275
Interest rate on Senior secured notes due 2017	12.50%	12.50%
Issue price percentage of principal amount		97.00%
Frequency of interest payment	semi-annually
Date of first required payment	Apr. 15, 2012
Additional interest rate	2.00%
Twelve Point Five Percentage Senior Secured Notes Due Two Thousand Seventeen \| Maximum
12.5% Senior Secured Notes due 2017 (Textual) [Abstract]
Secured leverage ratio	4.75%
Twelve Point Five Percentage Senior Secured Notes Due Two Thousand Seventeen \| Maximum \| Period One
12.5% Senior Secured Notes due 2017 (Textual) [Abstract]
Secured leverage ratio	4.75%
Twelve Point Five Percentage Senior Secured Notes Due Two Thousand Seventeen \| Maximum \| Period Two
12.5% Senior Secured Notes due 2017 (Textual) [Abstract]
Secured leverage ratio	4.75%
Twelve Point Five Percentage Senior Secured Notes Due Two Thousand Seventeen \| Maximum \| Period Three
12.5% Senior Secured Notes due 2017 (Textual) [Abstract]
Secured leverage ratio	4.75%
Twelve Point Five Percentage Senior Secured Notes Due Two Thousand Seventeen \| Maximum \| Period Four
12.5% Senior Secured Notes due 2017 (Textual) [Abstract]
Secured leverage ratio	4.75%
Twelve Point Five Percentage Senior Secured Notes Due Two Thousand Seventeen \| Maximum \| Period Five
12.5% Senior Secured Notes due 2017 (Textual) [Abstract]
Secured leverage ratio	4.75%
Twelve Point Five Percentage Senior Secured Notes Due Two Thousand Seventeen \| Maximum \| Period Six
12.5% Senior Secured Notes due 2017 (Textual) [Abstract]
Secured leverage ratio	4.75%

Aggregate principal amount of the notes.

No definition available.

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- Definition

Financial covenants maximum unpaid principal amount.

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

Issue price percentage of principal amount.

+ References

No definition available.

+ Details

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- Definition

Secured leverage ratio.

+ References

No definition available.

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- Definition

Date the debt agreement requires the first payment to be made, in CCYY-MM-DD format.

+ 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 210.5-02.22)

-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 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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- 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

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-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

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Balance Type:	credit
Period Type:	instant

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

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- Definition

Incremental percentage increase (decrease) in the stated rate on a debt instrument.

+ References

No definition available.

+ Details

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- Definition

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

+ References

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- Definition

Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

+ 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 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(3))

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

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