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Debt (Details)
In Millions, unless otherwise specified
6 Months Ended 6 Months Ended
Jun. 28, 2014
Mueller Europe Limited [Member]
USD ($)
Mar. 21, 2014
Mueller Europe Limited [Member]
USD ($)
Mar. 21, 2014
Mueller Europe Limited [Member]
GBP (£)
Jun. 28, 2014
Revolving Credit Facility [Member]
May 29, 2014
Revolving Credit Facility [Member]
USD ($)
Mar. 29, 2014
Revolving Credit Facility [Member]
USD ($)
May 29, 2014
Term Loan [Member]
USD ($)
Line of Credit Facility [Line Items]              
Maturity Date       Dec. 11, 2017      
Line of credit facility maximum borrowing capacity   $ 65.9 £ 40.0   $ 200.0 $ 350.0 $ 200.0
Initial term of the Invoice Facility 2 years            
Borrowings outstanding $ 23.1            
Debt instrument variable rate basis bear interest at the latest base-lending rate published by HSBC plus 155 basis points            
Basis spread on variable rate (in hundredths) 1.55%            
Debt, stated interest rate (in hundredths) 2.05%