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Tax Years Open to Examinations (Details) (Minimum) | 3 Months Ended
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Mar. 31, 2013
Domestic Tax Authority |
Income Tax Examination |
Open Tax Year | 2009
State and Local Jurisdiction |
Income Tax Examination |
Open Tax Year | 1999
Foreign Tax Authority |
Income Tax Examination |
Open Tax Year | 2005

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- Definition Tax year that remains open to examination under enacted tax laws, in CCYY format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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