XML 58 R36.htm IDEA: XBRL DOCUMENT v2.4.0.8
Long-Term Debt (Details) (USD $)
3 Months Ended 9 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
New senior unsecured revolving credit facility [Member]
Apr. 30, 2013
New senior unsecured revolving credit facility [Member]
Sep. 30, 2013
Senior Notes [Member]
Senior Convertible [Member]
Sep. 30, 2013
Senior Notes [Member]
Senior Convertible Due 2038 [Member]
Long-term debt                
Maximum borrowing capacity           $ 1,250,000,000    
Remaining term loan balance         575,000,000      
Debt repurchased             79,500,000  
Interest rate               3.95%
Debt outstanding             380,500,000  
Repayments of Senior Debt $ 572,300,000 $ 0 $ 641,300,000 $ 0     $ 641,300,000