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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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      <IsBaseElement>true</IsBaseElement>
      <BalanceType>credit</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
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      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
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      <IsBeginningBalance>false</IsBeginningBalance>
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      <IsReverseSign>true</IsReverseSign>
      <PreferredLabelRole>negated</PreferredLabelRole>
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      <FootnoteIndexer />
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          <Id>1</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>-124000</NumericAmount>
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          <NonNumbericText />
          <NonNumericTextHeader />
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          <hasSegments>false</hasSegments>
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          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
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        <Cell>
          <Id>2</Id>
          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>43000</NumericAmount>
          <RoundedNumericAmount>43000</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
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      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>Reductions in the entity's income taxes that arise when compensation cost (from non-qualified share-based compensation) recognized on the entity's tax return exceeds compensation cost from share-based compensation recognized in financial statements. This element reduces net cash provided by operating activities.</ElementDefenition>
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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 123R
 -Paragraph A96

</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
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      <Label>Deferred financing fees</Label>
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      <ElementName>us-gaap_AmortizationOfFinancingCosts</ElementName>
      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
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      <PreferredLabelRole>verboselabel</PreferredLabelRole>
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          <NumericAmount>124000</NumericAmount>
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          <NonNumbericText />
          <NonNumericTextHeader />
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          <hasSegments>false</hasSegments>
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        <Cell>
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          <NumericAmount>124000</NumericAmount>
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          <hasSegments>false</hasSegments>
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          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
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      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
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      <ElementDefenition>The component of interest expense comprised of the periodic charge against earnings over the life of the financing arrangement to which such costs relate.</ElementDefenition>
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 -Publisher SEC
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 -Paragraph 8
 -Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher SEC
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 -Paragraph 8
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      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>12</Id>
      <Label>Non-cash postretirement benefits curtailment gain</Label>
      <Level>3</Level>
      <ElementName>us-gaap_DefinedBenefitPlanCurtailments</ElementName>
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      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
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      <IsBeginningBalance>false</IsBeginningBalance>
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      <PreferredLabelRole>verboselabel</PreferredLabelRole>
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          <ShowCurrencySymbol>false</ShowCurrencySymbol>
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          <NumericAmount>-3066000</NumericAmount>
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          <NonNumbericText />
          <NonNumericTextHeader />
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          <hasSegments>false</hasSegments>
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        <Cell>
          <Id>2</Id>
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          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>-910000</NumericAmount>
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          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
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      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>The amount of decrease that is related to an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
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 -Paragraph 6

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 87
 -Paragraph 264

Reference 4: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
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      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>13</Id>
      <Label>Contributions to qualified pension plans</Label>
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      <ElementName>kdn_ContributionsToQualifiedPensionPlans</ElementName>
      <ElementPrefix>kdn</ElementPrefix>
      <IsBaseElement>false</IsBaseElement>
      <BalanceType>debit</BalanceType>
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      <ShortDefinition>Contributions to qualified pension plans.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
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      <PreferredLabelRole>verboselabel</PreferredLabelRole>
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      <FootnoteIndexer />
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          <NumericAmount>-657000</NumericAmount>
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          <DisplayZeroAsNone>false</DisplayZeroAsNone>
          <NumericAmount>-14846000</NumericAmount>
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          <NonNumericTextHeader />
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          <hasSegments>false</hasSegments>
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      <ElementDefenition>Contributions to qualified pension plans.</ElementDefenition>
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    <Row>
      <Id>14</Id>
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      <ShortDefinition>Net change in receivables, inventories and trade payables.</ShortDefinition>
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      <IsSegmentTitle>false</IsSegmentTitle>
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      <IsTuple>false</IsTuple>
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      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
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      <IsReverseSign>true</IsReverseSign>
      <PreferredLabelRole>negated</PreferredLabelRole>
      <IsEPS>false</IsEPS>
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        <Cell>
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          <NonNumericTextHeader />
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        <Cell>
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          <NonNumericTextHeader />
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      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
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      <ElementDefenition>Net change in receivables, inventories and trade payables.</ElementDefenition>
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      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>15</Id>
      <Label>Net change in other assets and liabilities</Label>
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      <BalanceType>credit</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
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      <IsSegmentTitle>false</IsSegmentTitle>
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      <PreferredLabelRole>negatedtotal</PreferredLabelRole>
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          <IsNumeric>true</IsNumeric>
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          <NumericAmount>3178000</NumericAmount>
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          <hasSegments>false</hasSegments>
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      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
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      <ElementDefenition>For entities with classified balance sheets, the net change during the reporting period in the value of other assets or liabilities used in operating activities, that are not otherwise defined in the taxonomy. For entities with unclassified balance sheets, the net change during the reporting period in the value of all other assets or liabilities used in operating activities.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 95
 -Paragraph 28

</ElementReferences>
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    <Row>
      <Id>16</Id>
      <Label>Net cash from operating activities</Label>
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      <BalanceType>na</BalanceType>
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      <ShortDefinition>No definition available.</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
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      <PreferredLabelRole>totallabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
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        <Cell>
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          <NumericAmount>52052000</NumericAmount>
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        <Cell>
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          <NumericAmount>2780000</NumericAmount>
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      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
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      <ElementDefenition>The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 95
 -Paragraph 28

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 95
 -Paragraph 26

</ElementReferences>
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    <Row>
      <Id>17</Id>
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      <ShortDefinition>No definition available.</ShortDefinition>
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    <Row>
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      <BalanceType>credit</BalanceType>
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      <ShortDefinition>No definition available.</ShortDefinition>
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      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.</ElementDefenition>
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 -Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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      <ShortDefinition>No definition available.</ShortDefinition>
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          <NumericAmount>110000</NumericAmount>
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      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
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      <ElementDefenition>The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.</ElementDefenition>
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 -Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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      <ElementPrefix>us-gaap</ElementPrefix>
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      <ShortDefinition>No definition available.</ShortDefinition>
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        <Cell>
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          <NumericAmount>1893000</NumericAmount>
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      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
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      <ElementDefenition>The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period.</ElementDefenition>
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 -Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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 -Publisher FASB
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      <Label>Net cash used in investing activities</Label>
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      <ElementPrefix>us-gaap</ElementPrefix>
      <IsBaseElement>true</IsBaseElement>
      <BalanceType>debit</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
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      <IsSegmentTitle>false</IsSegmentTitle>
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 -Publisher FASB
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 -Number 95
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      <BalanceType>na</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
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      <IsSegmentTitle>false</IsSegmentTitle>
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      <ShortDefinition>No definition available.</ShortDefinition>
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      <IsSegmentTitle>false</IsSegmentTitle>
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      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
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      <ElementDefenition>The cash outflow from the distribution of an entity's earnings in the form of dividends to common shareholders.</ElementDefenition>
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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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    <Row>
      <Id>24</Id>
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      <ShortDefinition>No definition available.</ShortDefinition>
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      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
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      <ElementDefenition>The cash outflow to reacquire common stock during the period.</ElementDefenition>
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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 95
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
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      <ShortDefinition>No definition available.</ShortDefinition>
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      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
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      <ElementDefenition>Reductions in the entity's income taxes that arise when compensation cost (from non-qualified share-based compensation) recognized on the entity's tax return exceeds compensation cost from share-based compensation recognized in financial statements. This element represents the cash inflow reported in the enterprise's financing activities.</ElementDefenition>
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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
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 -Paragraph A240
 -Subparagraph i

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Emerging Issues Task Force (EITF)
 -Number 00-15
 -Paragraph 3

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    <Row>
      <Id>26</Id>
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      <IsBaseElement>true</IsBaseElement>
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      <PeriodType>duration</PeriodType>
      <ShortDefinition>No definition available.</ShortDefinition>
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      <ElementDefenition>The cash inflow associated with the amount received from holders exercising their stock options.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 95
 -Paragraph 18

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 95
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