REVENUE RECOGNITION - Contract Balances (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 49,755	$ 51,150
Contract assets, current	12,324	12,840
Contract assets, non-current	18,269	17,987
Deferred revenue, current	21,985	20,737
Deferred revenue, non-current	$ 2,813	$ 2,999