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Related Party Transactions (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Sep. 30, 2011
Oct. 01, 2010
Armand Products Company [Member]
  
Related Party Transaction [Line Items]  
Percentage of ownership interests50.00%50.00%
Purchases by Company$ 14.3$ 10.5
Sales by Company00
Outstanding Accounts Receivable0.30.2
Outstanding Accounts Payable2.21.4
Administration & Management Oversight Services1.2[1]1.3[1]
ArmaKleen Company [Member]
  
Related Party Transaction [Line Items]  
Percentage of ownership interests50.00%50.00%
Purchases by Company00
Sales by Company4.14.1
Outstanding Accounts Receivable1.60.8
Outstanding Accounts Payable00
Administration & Management Oversight Services2.0[1]1.9[1]
Natronx LLC [Member]
  
Related Party Transaction [Line Items]  
Percentage of ownership interests33.33% 
Operating transactions0 
Expected future investment in JV$ 60 
Expected annual trona sorbents production, tons per year450,000 
[1]Billed by Company and recorded as a reduction of selling, general and administrative expenses