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Summarized Quarterly Results of Operations (Parenthetical) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Quarterly Financial Information Disclosure [Line Items]                
Impairment charges           $ 9,874 $ 0 $ 0
Stock compensation expense       $ 1,100   3,357 4,934 $ 3,115
Stock compensation expenses, after tax       $ 700        
Material Handling [Member]                
Quarterly Financial Information Disclosure [Line Items]                
Impairment charges $ 1,300         1,300    
Material Handling [Member] | Novel [Member]                
Quarterly Financial Information Disclosure [Line Items]                
Impairment charges   $ 8,500       $ 8,500    
Lawn and Garden Business [Member]                
Quarterly Financial Information Disclosure [Line Items]                
Gain sale of business     $ 900   $ 3,800   $ 4,700