XML 37 R77.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Debt - Additional Information (Detail) (USD $) In Millions, unless otherwise specified |  | 12 Months Ended | 1 Months Ended |  | 12 Months Ended | 1 Months Ended |  | 1 Months Ended |  | 12 Months Ended |  |  |  | 1 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 27, 2012 | Dec. 31, 2012 Amended and Restated Credit Agreement | Dec. 31, 2012 Amended and Restated Credit Agreement Restricted Payments | Feb. 10, 2014 Subsequent Event | Feb. 10, 2014 Subsequent Event Restricted Payments | Feb. 10, 2014 Subsequent Event Fourth Amendment | Feb. 10, 2014 Subsequent Event Fourth Amendment Restricted Payments | Dec. 27, 2012 Amendment To Senior Credit Facility | Dec. 31, 2013 Amendment To Senior Credit Facility Eurodollar Rate Minimum | Dec. 31, 2013 Amendment To Senior Credit Facility Eurodollar Rate Maximum | Dec. 31, 2013 Amendment To Senior Credit Facility Base Rate Minimum | Dec. 31, 2013 Amendment To Senior Credit Facility Base Rate Maximum | Dec. 27, 2012 Term Loans | Dec. 31, 2013 Term Loans | Dec. 27, 2012 Revolving Credit Facilities | Dec. 31, 2013 Revolving Credit Facilities | Dec. 31, 2013 Revolving Credit Facilities Minimum | Dec. 31, 2013 Revolving Credit Facilities Maximum | Dec. 31, 2012 Senior Secured Credit Facility Amended and Restated Credit Agreement Minimum | Sep. 13, 2013 Revolving credit facility and Term loan | Sep. 13, 2013 Revolving credit facility and Term loan Third Amendment | Feb. 10, 2014 Revolving Credit Facility Subsequent Event | Feb. 10, 2014 Revolving Credit Facility Subsequent Event Fourth Amendment
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  | $ 125.0 |  |  |  |  | $ 50.0 |  | $ 75.0 |  |  |  |  | $ 50.0 | $ 100.0 | $ 75.0 | $ 175.0
Debt instrument maturity period |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  | 5 years |  |  |  |  |  |  |  |
Revolving credit facility maturity year | 2017-12 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Variable interest rate |  |  |  |  |  |  |  |  | 2.00% | 3.00% | 1.00% | 2.00% |  |  |  |  |  |  |  |  |  |  |
Available for borrowings capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 46.0 |  |  |  |  |  |  |
Debt instrument interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.70% |  |  |  |  |  |  |  |  |
Unused Commitment Fees Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.25% | 0.625% |  |  |  |  |
Maximum consolidated leverage ratio |  | 275.00% | 225.00% | 275.00% | 225.00% | 300.00% | 250.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Remaining borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 25.0 |  |  |  |
Fixed charge coverage ratio, minimum |  | 150.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility increase during period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100

X
- Definition Consolidated Leverage Ratio Maximum + References No definition available. + Details
Name: | gsig_ConsolidatedLeverageRatioMaximum
Namespace Prefix: | gsig_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fixed Charge Coverage Ratio, Minimum + References No definition available. + Details
Name: | gsig_FixedChargeCoverageRatioMinimum
Namespace Prefix: | gsig_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the accordion feature for future expansion. + References No definition available. + Details
Name: | gsig_LineOfCreditFacilityIncreaseInMaximumBorrowingCapacity
Namespace Prefix: | gsig_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Maturity Date Of Senior Secured Credit Facility + References No definition available. + Details
Name: | gsig_MaturityDateOfSeniorSecuredCreditFacility
Namespace Prefix: | gsig_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | instant

X
- 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

X
- 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

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

X
- 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

X
- 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 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_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration