XML 56 R38.htm IDEA: XBRL DOCUMENT v2.4.0.6
Debt (Details) (USD $)
In Millions, unless otherwise specified
 9 Months Ended
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