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Insurance Recovery	12 Months Ended
Insurance Recovery	Dec. 31, 2014
Extraordinary And Unusual Items [Abstract]
Insurance Recovery	22. Insurance Recovery The Company received insurance recoveries of $3,730,000 and $1,188,000 in 2013 and 2012, respectively, for business interruption losses resulting from a May 2011 fire that damaged polyol manufacturing equipment at the Company’s plant site in Wesseling, Germany. The insurance recoveries were recorded as reductions of cost of sales in the consolidated statements of income for the years ended December 31, 2013 and 2012, respectively.