Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)
 12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2016
Mar. 31, 2000
Accounting Policies [Abstract]          
Shipping and handling fees $ 10,400,000 $ 10,600,000 $ 12,300,000    
Advertising expense 9,700,000 9,200,000 7,600,000    
Foreign currency gain (loss) recorded in other income and expense (300,000) (300,000) 200,000    
Line of Credit Facility [Line Items]          
Gain on sale of other investments 0 0 $ 13,574,000    
Product Warranty Term [Line Items]          
Amount authorized to repurchase common stock         $ 700,000,000
Remaining amount authorized to repurchase common stock $ 87,900,000 $ 87,900,000      
Minimum          
Product Warranty Term [Line Items]          
Product warranty term (in years) 1 year        
Maximum          
Product Warranty Term [Line Items]          
Product warranty term (in years) 3 years        
Credit agreement          
Line of Credit Facility [Line Items]          
Reserve requirement $ 20,000,000.0     $ 20,000,000