Quarterly report pursuant to Section 13 or 15(d)

REVENUE RECOGNITION - Narrative (Details)

v3.20.2
REVENUE RECOGNITION - Narrative (Details)
3 Months Ended 6 Months Ended
Sep. 30, 2020
USD ($)
Sep. 30, 2020
USD ($)
contract
Mar. 31, 2020
USD ($)
Disaggregation of Revenue [Line Items]      
Types of contracts | contract   2  
Revenue recognized   $ 2,200,000  
Contract with customer, liability $ 7,900,000 7,900,000 $ 4,900,000
Contract with customer, asset, after allowance for credit loss 0 0 0
Contract with customer, performance obligation satisfied in previous period 600,000 $ 1,000,000.0  
Low      
Disaggregation of Revenue [Line Items]      
Period of service   1 year  
Invoicing payment due period   30 days  
Contract termination notice period   30 days  
High      
Disaggregation of Revenue [Line Items]      
Period of service   5 years  
Invoicing payment due period   60 days  
Contract termination notice period   365 days  
Revenue      
Disaggregation of Revenue [Line Items]      
Accounts receivable $ 173,700,000 $ 173,700,000 $ 148,300,000