Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE, Part 2 (Details)

v2.4.0.8
FAIR VALUE, Part 2 (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Carrying Amount [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Senior unsecured notes $ 500.0 $ 500.0
Revolving credit facility 198 75
Estimated Fair Value [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Senior unsecured notes 536.3 527.5
Revolving credit facility $ 198 $ 75