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Debt (Details) (USD $) In Millions, unless otherwise specified | 9 Months Ended
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Sep. 30, 2012
Debt |
Credit facility, maximum borrowing capacity | 311.1
Primary revolving line of credit |
Debt |
Credit facility, maximum borrowing capacity | 300.0
Primary revolving line of credit | Maximum |
Debt |
Facility fees on the available commitment of the facility (as a percent) | 0.30%
Primary revolving line of credit | Minimum |
Debt |
Facility fees on the available commitment of the facility (as a percent) | 0.15%
Primary revolving line of credit | LIBOR |
Debt |
Credit facility, interest rate basis | LIBOR
LIBOR Rate at end of period (as a percent) | 0.21%
Primary revolving line of credit | LIBOR | Maximum |
Debt |
Credit facility, interest rate spread (as a percent) | 1.45%
Primary revolving line of credit | LIBOR | Minimum |
Debt |
Credit facility, interest rate spread (as a percent) | 0.60%
Primary revolving line of credit | Base rate |
Debt |
Credit facility, interest rate basis | Base rate
Primary revolving line of credit | Base rate | Maximum |
Debt |
Credit facility, interest rate spread (as a percent) | 0.45%
Primary revolving line of credit | Base rate | Minimum |
Debt |
Credit facility, interest rate spread (as a percent) | 0.00%
Other revolving credit lines and long term debt |
Debt |
Total Borrowing Capacity | 11.1
Credit facility, interest rate low end of range (as a percent) | 0.81%
Credit facility, interest rate high end of range (as a percent) | 7.25%
Total outstanding balances | 0.2

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- Definition The reference rate of the variable rate debt instrument at the end of the reporting period. + References No definition available. + Details
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- Definition Amount outstanding as of the balance sheet date. + References No definition available. + Details
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Balance Type: | credit
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- Definition Amount outstanding as of the balance sheet date. + References No definition available. + Details
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- Definition The percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition When presenting a range of interest rates, the highest stated (contractual) rate for funds borrowed under the debt agreement as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition When presenting a range of interest rates, the lowest stated (contractual) rate for funds borrowed under the debt agreement as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: 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(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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