STOCK-BASED COMPENSATION: - Time-vesting restricted stock unit, narrative (Details) - Restricted stock units $ in Millions	9 Months Ended
Dec. 31, 2020 USD ($) shares
Time Based Vesting
Share-based compensation
Granted (in shares) \| shares	1,969,500
Aggregate fair value of restricted stock units granted	$ 81.5
Vested in period, fair value	$ 53.4
Vesting in four years
Share-based compensation
Vesting period	4 years

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+ References

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-Publisher FASB
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-Topic 718
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+ References

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

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