Acquisitions and Dispositions - Additional Information (Detail) - USD ($)
 3 Months Ended 6 Months Ended 9 Months Ended
Sep. 18, 2015
Jul. 31, 2015
Oct. 31, 2014
May. 30, 2014
Sep. 30, 2015
Mar. 31, 2015
Sep. 30, 2014
Jun. 30, 2015
Sep. 30, 2015
Sep. 30, 2014
Business Acquisition [Line Items]                    
Percentage of stock-sale of subsidiary 100.00%                  
Combination of cash and Seller's note $ 8,700,000                  
Disposition of subsidiary, seller's note maturity term 180 days                  
Goodwill impairment                 $ 3,319,000  
Cumulative foreign currency translation adjustment, of the disposal group                 10,100,000  
Pre-tax impairment loss of the disposal group                 10,100,000  
Impairment charge                 34,893,000  
Loss on sale of asset disposal group                 (1,500,000)  
Pre-tax income (loss) from subsidiary         $ 900,000   $ (200,000)   (5,200,000) $ 0
Warehousing, Marketing and Administrative Expenses [Member]                    
Business Acquisition [Line Items]                    
Impairment charge           $ 10,100,000        
Estimated cost to sell           $ 100,000        
Additional cost incurred during transaction               $ 1,400,000 $ 2,100,000  
CPO Commerce, Inc [Member]                    
Business Acquisition [Line Items]                    
Business acquisition cash paid       $ 37,800,000            
Business acquisition, fair value of contingent consideration       5,500,000            
Business acquisition contingent consideration payments, range minimum       0            
Business acquisition contingent consideration payments, range maximum       $ 10,000,000            
Stock acquisition, percentage acquired       100.00%            
MEDCO [Member]                    
Business Acquisition [Line Items]                    
Business acquisition cash paid     $ 150,400,000              
Business acquisition, fair value of contingent consideration     4,700,000              
Business acquisition contingent consideration payments, range minimum     0              
Business acquisition contingent consideration payments, range maximum     $ 10,000,000              
Stock acquisition, percentage acquired     100.00%              
Amount reserved as a payable related to acquisition     $ 6,000,000              
Business acquisition acquired entity indemnification payment period     18 months              
Nestor Sales LLC [Member]                    
Business Acquisition [Line Items]                    
Business acquisition cash paid   $ 41,800,000                
Stock acquisition, percentage acquired   100.00%