XML 61 R47.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Company's Repurchase Activities (Detail) - $ / shares shares in Thousands | 60 Months Ended |  |  |
--- | --- | --- | --- | ---
Sep. 30, 2016 | Nov. 30, 2017 | Oct. 31, 2017 | Sep. 30, 2017
Capital Unit [Line Items] |  |  |  |  |  |
Company's common units authorized for repurchase |  |  |  |  |  | 7,344
Plan III Common Units Repurchase Program |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |
Company's common units authorized for repurchase |  |  |  |  |  | 4,894
Total Number of Units Purchased | [1],[2] | 5,137 |  |  |  |
Average Price Paid per Unit | [1],[3] | $ 5.78 |  |  |  |
Maximum Number of Units that May Yet Be Purchased |  | 2,207 | [1] | 2,207 | 2,207 | 2,207
Private Transaction |  |  |  |  |  |
Capital Unit [Line Items] |  |  |  |  |  |
Company's common units authorized for repurchase |  |  |  |  |  | 2,450
[1] | Includes 2.45 million common units acquired in private transactions.
[2] | Units were repurchased as part of a publicly announced program, except as noted in a private transaction.
[3] | Amounts include repurchase costs.

X
- Definition Average price paid per unit. + References No definition available. + Details
Name: | sgu_AveragePricePaidPerUnit
Namespace Prefix: | sgu_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of shares that have been repurchased and retired during the period. + 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(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644 Reference 4: 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(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=sgu_StockRepurchaseProgramThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=sgu_PrivateTransactionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |