LEASES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Lessee, Lease, Description [Line Items]
Additional right-of-use assets	$ 1.1
Additional lease liabilities	1.5
Cash payments	3.5	$ 1.7
Dosh Holdings, Inc.
Lessee, Lease, Description [Line Items]
Additional right-of-use assets	0.9
Additional lease liabilities	1.3
Data Center Expansion
Lessee, Lease, Description [Line Items]
Additional right-of-use assets	$ 0.2