Quarterly report pursuant to Section 13 or 15(d)

Contingencies (Details Textual)

v2.4.0.6
Contingencies (Details Textual) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2012
LegalMatter
Dec. 31, 2010
Loss Contingencies [Line Items]    
Amount accrued $ 0  
Contingencies (Textual) [Abstract]    
Number of Lawsuits 15  
Percent of costs to study and remediate site   20.00%
Gulfco Site [Member]
   
Loss Contingencies [Line Items]    
Amount accrued 0.6  
Customs Agent and Foreign Corrupt Practices Act (FCPA) Investigation [Member]
   
Loss Contingencies [Line Items]    
Amount accrued $ 0