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Stock-Based Compensation (Details) - USD ($) $ in Millions | 3 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019
Stock-Based Compensation [Abstract] |  |
Stock-based compensation cost | $ 0.7 | $ 1.7
Unrecognized compensation expenses and recognition period [Abstract] |  |
Unrecognized compensation expense | $ 7.3 |
Weighted-average remaining service period | 2 years 3 months 18 days |
Stock Options [Member] |  |
Unrecognized compensation expenses and recognition period [Abstract] |  |
Unrecognized compensation expense | $ 2.1 |
Weighted-average remaining service period | 2 years 3 months 18 days |
Restricted Stock Awards [Member] |  |
Unrecognized compensation expenses and recognition period [Abstract] |  |
Unrecognized compensation expense | $ 4.5 |
Weighted-average remaining service period | 2 years 4 months 24 days |
Performance Stock Awards [Member] |  |
Unrecognized compensation expenses and recognition period [Abstract] |  |
Unrecognized compensation expense | $ 0.7 |
Weighted-average remaining service period | 1 year 8 months 12 days |

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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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