XML 23 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Note 5 - Derivative Financial Instruments (Details) (USD $) | 3 Months Ended
--- | ---
Mar. 31, 2014 gal
Note 5 - Derivative Financial Instruments (Details) [Line Items] |
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent (in Dollars) | $ 27,000
Price Risk Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net (in Dollars) | $ 14,000
Derivative, Nonmonetary Notional Amount, Gallons | 820,000
Minimum [Member] |
Note 5 - Derivative Financial Instruments (Details) [Line Items] |
Derivative, Nonmonetary, Number of Gallons Range | 10,000
Underlying, Derivative Volume (in Dollars per US Gallon) | 2.75
Maximum [Member] |
Note 5 - Derivative Financial Instruments (Details) [Line Items] |
Derivative, Nonmonetary, Number of Gallons Range | 50,000
Underlying, Derivative Volume (in Dollars per US Gallon) | 2.89

X
- Definition The number of gallons in a derivative contract expressed in nonmonetary units. For example, the number of gallons specified in a fuel forward purchase contract. + References No definition available. + Details
Name: | strl_DerivativeNonmonetaryNotionalAmountGallons
Namespace Prefix: | strl_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | duration

X
- Definition The range in gallons of the derivative contract nonmonetary units. For example, volume in gallons specified in a fuel forward purchase contract. + References No definition available. + Details
Name: | strl_DerivativeNonmonetaryNumberOfGallonsRange
Namespace Prefix: | strl_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | strl_Note5DerivativeFinancialInstrumentsDetailsLineItems
Namespace Prefix: | strl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of tax expense (benefit), after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569643-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 + Details
Name: | us-gaap_OtherComprehensiveIncomeForeignCurrencyTranslationAdjustmentTaxPortionAttributableToParent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of net gains or losses on price risk cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income. + References No definition available. + Details
Name: | us-gaap_PriceRiskCashFlowHedgeGainOrLossReclassifiedToEarningsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Specified interest rate, security price, commodity price, foreign exchange rate, index of prices or rates for a derivative contract measured in volume but not the derivative contract itself. + References No definition available. + Details
Name: | us-gaap_UnderlyingDerivativeVolume
Namespace Prefix: | us-gaap_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | duration