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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 |

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