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<?xml version="1.0" encoding="windows-1252"?> |
<InstanceReport xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> |
| <Version> 2.2.0.25 </Version> |
| <hasSegments> false </hasSegments> |
| <hasScenarios> false </hasScenarios> |
| <ReportLongName> 995200 - Document - Document Information </ReportLongName> |
| <DisplayLabelColumn> true </DisplayLabelColumn> |
| <ShowElementNames> false </ShowElementNames> |
| <RoundingOption/> |
| <HasEmbeddedReports> false </HasEmbeddedReports> |
| <Columns> |
| | <Column> |
| | | <Id> 1 </Id> |
| | | <IsAbstractGroupTitle> false </IsAbstractGroupTitle> |
| | | <LabelColumn> false </LabelColumn> |
| | | <CurrencyCode> USD </CurrencyCode> |
| | | <FootnoteIndexer/> |
| | | <hasSegments> false </hasSegments> |
| | | <hasScenarios> false </hasScenarios> |
| | | <MCU> |
| <KeyName> 1/1/2010 - 12/31/2010 USD ($) USD ($) / shares </KeyName> |
| <CurrencySymbol> $ </CurrencySymbol> |
| <contextRef> |
| <ContextID> c00150 </ContextID> |
| <EntitySchema> http://www.sec.gov/CIK </EntitySchema> |
| <EntityValue> 0000045012 </EntityValue> |
| <PeriodDisplayName/> |
| <PeriodType> duration </PeriodType> |
| <PeriodStartDate> 2010-01-01T00:00:00 </PeriodStartDate> |
| <PeriodEndDate> 2010-12-31T00:00:00 </PeriodEndDate> |
| <Segments/> |
| <Scenarios/> |
| </contextRef> |
| <UPS> |
| <UnitProperty> |
| <UnitID> u000 </UnitID> |
| <UnitType> Standard </UnitType> |
| <StandardMeasure> |
| <MeasureSchema> http://www.xbrl.org/2003/iso4217 </MeasureSchema> |
| <MeasureValue> USD </MeasureValue> |
| <MeasureNamespace> iso4217 </MeasureNamespace> |
| </StandardMeasure> |
| <Scale> 0 </Scale> |
| </UnitProperty> |
| <UnitProperty> |
| <UnitID> u003 </UnitID> |
| <UnitType> Divide </UnitType> |
| <NumeratorMeasure> |
| <MeasureSchema> http://www.xbrl.org/2003/iso4217 </MeasureSchema> |
| <MeasureValue> USD </MeasureValue> |
| <MeasureNamespace> iso4217 </MeasureNamespace> |
| </NumeratorMeasure> |
| <DenominatorMeasure> |
| <MeasureSchema> http://www.xbrl.org/2003/instance </MeasureSchema> |
| <MeasureValue> shares </MeasureValue> |
| <MeasureNamespace> xbrli </MeasureNamespace> |
| </DenominatorMeasure> |
| <Scale> 0 </Scale> |
| </UnitProperty> |
| <UnitProperty> |
| <UnitID> u001 </UnitID> |
| <UnitType> Standard </UnitType> |
| <StandardMeasure> |
| <MeasureSchema> http://www.xbrl.org/2003/instance </MeasureSchema> |
| <MeasureValue> pure </MeasureValue> |
| <MeasureNamespace> xbrli </MeasureNamespace> |
| </StandardMeasure> |
| <Scale> 0 </Scale> |
| </UnitProperty> |
| <UnitProperty> |
| <UnitID> u002 </UnitID> |
| <UnitType> Standard </UnitType> |
| <StandardMeasure> |
| <MeasureSchema> http://www.xbrl.org/2003/instance </MeasureSchema> |
| <MeasureValue> shares </MeasureValue> |
| <MeasureNamespace> xbrli </MeasureNamespace> |
| </StandardMeasure> |
| <Scale> 0 </Scale> |
| </UnitProperty> |
| </UPS> |
| <CurrencyCode> USD </CurrencyCode> |
| <OriginalCurrencyCode> USD </OriginalCurrencyCode> |
| </MCU> |
| | | <CurrencySymbol> $ </CurrencySymbol> |
| | | <Labels> |
| <Label Id="1" Label="12 Months Ended"/> |
| <Label Id="2" Label="Dec. 31, 2010"/> |
| </Labels> |
| | | </Column> |
| | </Columns> |
| <Rows> |
| | <Row> |
| | | <Id> 3 </Id> |
| | | <IsAbstractGroupTitle> false </IsAbstractGroupTitle> |
| | | <Level> 0 </Level> |
| | | <ElementName> dei_DocumentType </ElementName> |
| | | <ElementPrefix> dei </ElementPrefix> |
| | | <IsBaseElement> false </IsBaseElement> |
| | | <BalanceType> na </BalanceType> |
| | | <PeriodType> duration </PeriodType> |
| | | <ShortDefinition> No definition available. </ShortDefinition> |
| | | <IsReportTitle> false </IsReportTitle> |
| | | <IsSegmentTitle> false </IsSegmentTitle> |
| | | <IsSubReportEnd> false </IsSubReportEnd> |
| | | <IsCalendarTitle> false </IsCalendarTitle> |
| | | <IsTuple> false </IsTuple> |
| | | <IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow> |
| | | <IsEquityAdjustmentRow> false </IsEquityAdjustmentRow> |
| | | <IsBeginningBalance> false </IsBeginningBalance> |
| | | <IsEndingBalance> false </IsEndingBalance> |
| | | <IsReverseSign> false </IsReverseSign> |
| | | <PreferredLabelRole/> |
| | | <FootnoteIndexer/> |
| | | <Cells> |
| <Cell> |
| <Id> 1 </Id> |
| <IsNumeric> false </IsNumeric> |
| <IsRatio> false </IsRatio> |
| <DisplayZeroAsNone> false </DisplayZeroAsNone> |
| <NumericAmount> 0 </NumericAmount> |
| <RoundedNumericAmount> 0 </RoundedNumericAmount> |
| <NonNumbericText> 10-K </NonNumbericText> |
| <NonNumericTextHeader> 10-K </NonNumericTextHeader> |
| <FootnoteIndexer/> |
| <CurrencyCode/> |
| <CurrencySymbol/> |
| <IsIndependantCurrency> false </IsIndependantCurrency> |
| <ShowCurrencySymbol> false </ShowCurrencySymbol> |
| <DisplayDateInUSFormat> false </DisplayDateInUSFormat> |
| <hasSegments> false </hasSegments> |
| <hasScenarios> false </hasScenarios> |
| </Cell> |
| </Cells> |
| | | <OriginalInstanceReportColumns/> |
| | | <Unit> Other </Unit> |
| | | <ElementDataType> us-types:SECReportItemType </ElementDataType> |
| | | <SimpleDataType> na </SimpleDataType> |
| | | <ElementDefenition> The type of document being provided (such as 10-K, 10-Q, N-1A, etc). The document type should be limited to the same value as the supporting SEC submission type. The acceptable values are as follows: S-1, S-3, S-4, S-11, F-1, F-3, F-4, F-9, F-10, 6-K, 8-K, 10, 10-K, 10-Q, 20-F, 40-F, N-1A, 485BPOS, NCSR, N-Q, and Other. </ElementDefenition> |
| | | <ElementReferences> No authoritative reference available. </ElementReferences> |
| | | <IsTotalLabel> false </IsTotalLabel> |
| | | <IsEPS> false </IsEPS> |
| | | <Label> Document Type </Label> |
| | | </Row> |
| | <Row> |
| | | <Id> 4 </Id> |
| | | <IsAbstractGroupTitle> false </IsAbstractGroupTitle> |
| | | <Level> 0 </Level> |
| | | <ElementName> dei_AmendmentFlag </ElementName> |
| | | <ElementPrefix> dei </ElementPrefix> |
| | | <IsBaseElement> false </IsBaseElement> |
| | | <BalanceType> na </BalanceType> |
| | | <PeriodType> duration </PeriodType> |
| | | <ShortDefinition> No definition available. </ShortDefinition> |
| | | <IsReportTitle> false </IsReportTitle> |
| | | <IsSegmentTitle> false </IsSegmentTitle> |
| | | <IsSubReportEnd> false </IsSubReportEnd> |
| | | <IsCalendarTitle> false </IsCalendarTitle> |
| | | <IsTuple> false </IsTuple> |
| | | <IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow> |
| | | <IsEquityAdjustmentRow> false </IsEquityAdjustmentRow> |
| | | <IsBeginningBalance> false </IsBeginningBalance> |
| | | <IsEndingBalance> false </IsEndingBalance> |
| | | <IsReverseSign> false </IsReverseSign> |
| | | <PreferredLabelRole/> |
| | | <FootnoteIndexer/> |
| | | <Cells> |
| <Cell> |
| <Id> 1 </Id> |
| <IsNumeric> false </IsNumeric> |
| <IsRatio> false </IsRatio> |
| <DisplayZeroAsNone> false </DisplayZeroAsNone> |
| <NumericAmount> 0 </NumericAmount> |
| <RoundedNumericAmount> 0 </RoundedNumericAmount> |
| <NonNumbericText> false </NonNumbericText> |
| <NonNumericTextHeader> false </NonNumericTextHeader> |
| <FootnoteIndexer/> |
| <CurrencyCode/> |
| <CurrencySymbol/> |
| <IsIndependantCurrency> false </IsIndependantCurrency> |
| <ShowCurrencySymbol> false </ShowCurrencySymbol> |
| <DisplayDateInUSFormat> false </DisplayDateInUSFormat> |
| <hasSegments> false </hasSegments> |
| <hasScenarios> false </hasScenarios> |
| </Cell> |
| </Cells> |
| | | <OriginalInstanceReportColumns/> |
| | | <Unit> Other </Unit> |
| | | <ElementDataType> xbrli:booleanItemType </ElementDataType> |
| | | <SimpleDataType> na </SimpleDataType> |
| | | <ElementDefenition> If the value is true, then the document as an amendment to previously-filed/accepted document. </ElementDefenition> |
| | | <ElementReferences> No authoritative reference available. </ElementReferences> |
| | | <IsTotalLabel> false </IsTotalLabel> |
| | | <IsEPS> false </IsEPS> |
| | | <Label> Amendment Flag </Label> |
| | | </Row> |
| | <Row> |
| | | <Id> 5 </Id> |
| | | <IsAbstractGroupTitle> false </IsAbstractGroupTitle> |
| | | <Level> 0 </Level> |
| | | <ElementName> dei_DocumentPeriodEndDate </ElementName> |
| | | <ElementPrefix> dei </ElementPrefix> |
| | | <IsBaseElement> false </IsBaseElement> |
| | | <BalanceType> na </BalanceType> |
| | | <PeriodType> duration </PeriodType> |
| | | <ShortDefinition> No definition available. </ShortDefinition> |
| | | <IsReportTitle> false </IsReportTitle> |
| | | <IsSegmentTitle> false </IsSegmentTitle> |
| | | <IsSubReportEnd> false </IsSubReportEnd> |
| | | <IsCalendarTitle> false </IsCalendarTitle> |
| | | <IsTuple> false </IsTuple> |
| | | <IsEquityPrevioslyReportedAsRow> false </IsEquityPrevioslyReportedAsRow> |
| | | <IsEquityAdjustmentRow> false </IsEquityAdjustmentRow> |
| | | <IsBeginningBalance> false </IsBeginningBalance> |
| | | <IsEndingBalance> false </IsEndingBalance> |
| | | <IsReverseSign> false </IsReverseSign> |
| | | <PreferredLabelRole/> |
| | | <FootnoteIndexer/> |
| | | <Cells> |
| <Cell> |
| <Id> 1 </Id> |
| <IsNumeric> false </IsNumeric> |
| <IsRatio> false </IsRatio> |
| <DisplayZeroAsNone> false </DisplayZeroAsNone> |
| <NumericAmount> 0 </NumericAmount> |
| <RoundedNumericAmount> 0 </RoundedNumericAmount> |
| <NonNumbericText> 2010-12-31 </NonNumbericText> |
| <NonNumericTextHeader> 2010-12-31 </NonNumericTextHeader> |
| <FootnoteIndexer/> |
| <CurrencyCode/> |
| <CurrencySymbol/> |
| <IsIndependantCurrency> false </IsIndependantCurrency> |
| <ShowCurrencySymbol> false </ShowCurrencySymbol> |
| <DisplayDateInUSFormat> true </DisplayDateInUSFormat> |
| <hasSegments> false </hasSegments> |
| <hasScenarios> false </hasScenarios> |
| </Cell> |
| </Cells> |
| | | <OriginalInstanceReportColumns/> |
| | | <Unit> Other </Unit> |
| | | <ElementDataType> xbrli:dateItemType </ElementDataType> |
| | | <SimpleDataType> date </SimpleDataType> |
| | | <ElementDefenition> The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements this will be the filing date. The format of the date is CCYY-MM-DD. </ElementDefenition> |
| | | <ElementReferences> No authoritative reference available. </ElementReferences> |
| | | <IsTotalLabel> false </IsTotalLabel> |
| | | <IsEPS> false </IsEPS> |
| | | <Label> Document Period End Date </Label> |
| | | </Row> |
| | </Rows> |
| <Footnotes/> |
| <NumberOfCols> 1 </NumberOfCols> |
| <NumberOfRows> 3 </NumberOfRows> |
| <ReportName> Document Information </ReportName> |
| <MonetaryRoundingLevel> UnKnown </MonetaryRoundingLevel> |
| <SharesRoundingLevel> UnKnown </SharesRoundingLevel> |
| <PerShareRoundingLevel> UnKnown </PerShareRoundingLevel> |
| <ExchangeRateRoundingLevel> UnKnown </ExchangeRateRoundingLevel> |
| <HasCustomUnits> false </HasCustomUnits> |
| <SharesShouldBeRounded> true </SharesShouldBeRounded> |
| </InstanceReport> |