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Revenue Recognition - Additional Information (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Sep. 30, 2018 | Mar. 31, 2018
Product Warranty Liability [Line Items] |  |
Revenue recognized, percentage | 87.00% |
Minimum |  |
Product Warranty Liability [Line Items] |  |
Warranty period | 1 year |
Maximum |  |
Product Warranty Liability [Line Items] |  |
Warranty period | 2 years |
Extended service warranty, term | 4 years |
Accounting Standards Update 2014-09 |  |
Product Warranty Liability [Line Items] |  |
Adjustment to retained earnings (less than) |  | $ 0.1
Accounting Standards Update 2017-05 |  |
Product Warranty Liability [Line Items] |  |
Adjustment to retained earnings (less than) |  | $ 0.1

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- Definition Revenue, Performance Obligation Satisfied, Revenue Recognized, Percentage + References No definition available. + Details
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