v2.4.0.6
Commitments and Contingencies Available Lines of Credit, Outstanding Standby Letter of Credits, and Bonds (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Line of Credit Facility [Line Items]    
Long-term borrowings $ (125,000)  
Standby LOCs issued and outstanding (47,800)  
Net available for additional borrowings and LOCs 487,200  
Unsecured surety bonds in force 137,002 164,820
Credit Facility [Member]
    
Line of Credit Facility [Line Items]    
Multicurrency revolving line of credit 660,000 [1] 660,000 [1]
Long-term borrowings (125,000) [1] (140,000) [1]
Standby LOCs issued and outstanding (47,772) [1] (54,328) [1]
Net available for additional borrowings and LOCs 487,228 [1] 465,672 [1]
Unsecured Multicurrency Revolving Lines of Credit [Member]
    
Line of Credit Facility [Line Items]    
Multicurrency revolving line of credit 96,864 67,308
Standby LOCs issued and outstanding (28,056) (29,906)
Short-term borrowings(2) (1,537) [2] (851) [2]
Net available for additional borrowings and LOCs $ 67,271 $ 36,551
[1] See Note 6 for details regarding our secured credit facilities.
[2] Short-term borrowings are included in "Other current liabilities" on the Consolidated Balance Sheets.