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Note 10 - Notes Payable | 9 Months Ended
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Sep. 30, 2012
Long-term Debt [Text Block] | 10. Notes Payable During April 2012, the Company obtained a new $400.0 million unsecured term loan with a consortium of banks, which accrues interest at LIBOR plus 105 basis points. The term loan is scheduled to mature in April 2014, with three additional one-year options to extend the maturity date, at the Company’s discretion, to April 17, 2017. Proceeds from this term loan were used for general corporate purposes including the repayment of maturing debt amounts. During July 2012, the Company repaid the $17.0 million outstanding on its 5.98% medium-term notes, which matured in July 2012.

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- Definition The entire disclosure for long-term debt. + 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 210.5-02.22) -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 22 -Article 5 + Details
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