REVENUE AND DEFERRED REVENUE - Schedule of Accounts Receivable and Deferred Revenue (Details) $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($)
Accounts Receivable
Opening balance	$ 22,919
Increase/(decrease), net	(7,528)
Ending balance	15,391
Deferred Revenue (current)
Opening balance	119,851
Increase/(decrease), net	(13,882)
Ending balance	105,969
Deferred Revenue (non-current)
Opening balance	57,766
Increase/(decrease), net	270
Ending balance	$ 58,036

Contract With Customer, Change In Asset [Roll Forward]

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Contract With Customer, Change In Liability [Roll Forward]

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- Definition

Contract With Customer, Change In Non Current Liability [Roll Forward]

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- Definition

Increase (Decrease) In Contract With Customer, Liability, Current, Net

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Increase (Decrease) In Contract With Customer, Liability, Non Current, Net

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

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-Publisher FASB
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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

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Amount of increase (decrease) in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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