Income Taxes - Change in Valuation Allowance (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Mar. 31, 2019 |
Mar. 31, 2018 |
|
| Valuation allowance | ||
| Change in valuation allowance | $ 2.1 | $ 95.5 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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