Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments, Fair Value of Other Financial Instruments (Details)

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Financial Instruments, Fair Value of Other Financial Instruments (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2012
Estimate of Fair Value, Fair Value Disclosure [Member]
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Fair Value of the Company's long-term debt including current maturities $ 718.5
Carrying (Reported) Amount, Fair Value Disclosure [Member]
 
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Fair Value of the Company's long-term debt including current maturities $ 673.7