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Summary of Significant Accounting Policies (Details) (USD $)
 3 Months Ended 12 Months Ended
Jun. 30, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Accounting Policies [Abstract]        
Depreciation   $ 5,400,000 $ 4,300,000 $ 3,700,000
Amortization expense of capitalized software   3,500,000 2,800,000 1,700,000
Goodwill impairment $ 28,300,000 $ 0 $ 28,306,000 $ 0
Treasury stock, shares acquired   2,691 2,474 3,759
Buildings and improvements | Minimum
        
Property, Plant and Equipment [Line Items]        
Property, plant and equipment, useful life   20 years    
Buildings and improvements | Maximum
        
Property, Plant and Equipment [Line Items]        
Property, plant and equipment, useful life   30 years    
Machinery and equipment, furniture and fixtures, and vehicles | Minimum
        
Property, Plant and Equipment [Line Items]        
Property, plant and equipment, useful life   3 years    
Machinery and equipment, furniture and fixtures, and vehicles | Maximum
        
Property, Plant and Equipment [Line Items]        
Property, plant and equipment, useful life   10 years    
Capitalized software | Minimum
        
Property, Plant and Equipment [Line Items]        
Property, plant and equipment, useful life   3 years    
Capitalized software | Maximum
        
Property, Plant and Equipment [Line Items]        
Property, plant and equipment, useful life   5 years