LEASES (Details) - USD ($)	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Lessee, Lease, Description [Line Items]
Operating lease costs	$ 29,383,000
Short term lease costs	2,771,000
Rent expense		$ 29,204,000	$ 25,301,000
Cash paid for amounts included in the measurement of lease liabilities	28,419
ROU assets obtained in exchange for lease obligations	$ 58,745
Remaining lease term	8 years 10 months 24 days
Discount rate	4.98%
Facility leases not yet commenced, future lease payments	$ 16,216,000
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease terms	1 year
Lease renewal terms	1 year
Facility leases not yet commenced, lease term	7 years
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease terms	15 years
Lease renewal terms	5 years
Facility leases not yet commenced, lease term	10 years