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Stock-Based Compensation (Details) - USD ($) $ in Millions	3 Months Ended
	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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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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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.

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Amount of noncash expense for share-based payment arrangement.

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