Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT, May 2010 Senior Secured Credit Facility (Details)

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LONG-TERM DEBT, May 2010 Senior Secured Credit Facility (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
May 2010 Senior Secured Credit Facility [Member]
    
Senior Secured Credit Facility [Line Items]    
Percentage of capital stock of foreign wholly owned subsidiaries (in hundredths) 65.00%  
May 2010 Senior Secured Credit Facility [Member] | LIBOR [Member]
    
Senior Secured Credit Facility [Line Items]    
Basis spread on variable rate (in hundredths) 3.25%  
May 2010 Senior Secured Credit Facility [Member] | Base Rate [Member]
    
Senior Secured Credit Facility [Line Items]    
Basis spread on variable rate (in hundredths) 2.25%  
May 2010 Senior Secured Credit Facility Term loan A [Member]
    
Senior Secured Credit Facility [Line Items]    
Term loans borrowing capacity $ 100.0  
Maturity period, term loans 5 years 6 months  
May 2010 Senior Secured Credit Facility Term loan A [Member] | Minimum [Member]
    
Senior Secured Credit Facility [Line Items]    
Quarterly payments 1.25  
May 2010 Senior Secured Credit Facility Term loan A [Member] | Maximum [Member]
    
Senior Secured Credit Facility [Line Items]    
Quarterly payments 10.00  
May 2010 Senior Secured Credit Facility Term loan B [Member]
    
Senior Secured Credit Facility [Line Items]    
Option to increase aggregate borrowing capacity, maximum 200 300
Increased aggregate borrowing capacity 100  
Term loans borrowing capacity 900.0  
Maturity period, term loans 6 years 6 months  
Quarterly payments 2.25  
May 2010 Senior Secured Credit Facility Term loan B [Member] | LIBOR [Member]
    
Senior Secured Credit Facility [Line Items]    
Interest rate, floor (in hundredths) 1.50%  
May 2010 Senior Secured Credit Facility Term loan B [Member] | Base Rate [Member]
    
Senior Secured Credit Facility [Line Items]    
Interest rate, floor (in hundredths) 2.50%  
May 2010 Senior Secured Credit Facility Revolving credit facility [Member]
    
Senior Secured Credit Facility [Line Items]    
Line of credit borrowing capacity 300  
Maturity period, line of credit 5 years  
Capacity available for the issuance of letters of credit 150  
Capacity available for swing-line loans 50  
Capacity available for borrowings in foreign currencies 100  
Commitment fee per annum (in hundredths) 0.50%  
Outstanding letters of credit 63.9  
Amount available for future borrowings $ 236.1