Name:	slgop_DeferredCompensationArrangementWithIndividualMaximumPercentageOfTheCompensationThatMayBeDeferred
Namespace Prefix:	slgop_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the duration of each offering period during which the shares are offered for purchase under the stock-based compensation plan of the entity.

No definition available.

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

Represents the approximate amount of awards that may be earned by the recipients of the stock-based compensation plan of the entity depending upon the appreciation of the price of stock of the entity above a threshold level.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsApproximateAmountOfAwardsThatMayBeEarned
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the approximate amount of awards that could be earned by the recipients of the plan any time after the beginning of the second year, if the maximum performance has been achieved.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsApproximateAmountOfAwardsThatMayBeEarnedAnyTimeAfterStartOfSecondYear
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the approximate amount of awards that could be earned by the recipients of the plan any time after the beginning of the third year, if the maximum performance has been achieved.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsApproximateAmountOfAwardsThatMayBeEarnedAnyTimeAfterStartOfThirdYear
Namespace Prefix:	slgop_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the awards earned by all participants under the stock-based compensation plans.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAwardsEarned
Namespace Prefix:	slgop_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Represents the consecutive number of days over which maximum performance must be maintained in order to earn the award earlier than the standard period.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsConsecutiveDaysOfMaximumPerformance
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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Under the compensation program, represents the maximum performance pool, net of forfeitures, established based on the successful attainment of performance hurdles.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsMaximumPerformancePoolAmount
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Represents the minimum percentage of stock price appreciation at which the maximum approximate amount of awards will be earned by recipients of the stock-based compensation plan.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsMinimumPercentageStockPriceAppreciationToEarnMaximumAmount
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the percentage of awards earned which will be vesting on August 31, 2014.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfAwardsVestingOnAugust312014
Namespace Prefix:	slgop_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the percentage of awards earned which will be vesting on August 31, 2015.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfAwardsVestingOnAugust312015
Namespace Prefix:	slgop_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the percentage of each award which vested upon attainment date of performance hurdles.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfEachAwardVested
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the threshold percentage of return to be achieved by the holders of the entity's common equity, above which awards may be granted to plan participants.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceCriteriaThresholdReturnOnEquity
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the period over which the return achieved by the holders of the entity's common equity is measured to determine eligibility to grant awards.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceMeasurementPeriod
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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents the period for appreciation of the stock price of the entity to be taken into consideration for arriving at the amount of awards to be granted under the stock-based compensation plan.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPeriodForAppreciationOfStockPrice
Namespace Prefix:	slgop_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents the period over which the remainder of the award vests based on continued employment with the company.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsRemainingVestingPeriod
Namespace Prefix:	slgop_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents the term for which the stock-based compensation program will be in force.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsTermOfCompensationProgram
Namespace Prefix:	slgop_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents the value of awards to be earned expressed as a percentage of the outperformance amount in excess of the minimum percentage of return which the stockholders are required to achieve for awards to be granted.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsValueOfAwardsToBeEarnedAsPercentageOfExcessOverPerformanceCriteriaOfMinimumReturnOnEquity
Namespace Prefix:	slgop_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the price at which the employees can purchase the shares of common stock of the entity under stock-based compensation plans. Such price is expressed as a percentage of lesser of market value of the shares on the first day or the last day of the offering period under that plan.

No definition available.

Name:	slgop_ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchasePriceAsPercentageOfMarketValueOfCommonStock
Namespace Prefix:	slgop_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph g(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

-URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Number of common stock held in a trust that has been set up specifically to accumulate stock for the sole purpose of distribution to participating employees but not yet earned.

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

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 93-6

-Paragraph 14

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 40

-Section 25

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6418455&loc=d3e16701-113920

Name:	us-gaap_CommonStockSharesHeldInEmployeeTrustShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph g(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

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

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

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

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901