LEASES - Components of Lease Right-of-Use Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021
Assets
Operating lease, right-of-use assets	$ 63,402	$ 66,664
Liabilities
Operating lease liabilities, current	12,792	12,942
Operating lease liabilities, non-current	79,403	82,456
Total operating lease liabilities	$ 92,195	$ 95,398