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REVENUE RECOGNITION (Tables)
 3 Months Ended
Mar. 31, 2019
Revenue From Contract With Customer [Abstract]  
Schedule of Assets and Liabilities Associated with Contracts from Customers

The following table provides information about assets and liabilities associated with our contracts from customers (in thousands):

 

 

 

As of  March 31, 2019

 

Accounts receivable

 

$

52,124

 

Short-term unbilled receivables

 

 

241

 

Long-term unbilled receivables

 

 

—

 

Short-term deferred revenue

 

 

86,296

 

Long-term deferred revenue

 

 

41,596

 
Summary of Significant Changes in Unbilled Receivables and Deferred Liabilities Balances

Significant changes in the unbilled receivables and deferred liabilities balances during the period are as follows (in thousands):

 

 

Three Months Ended March 31, 2019

 

 

 

Unbilled Receivables

Increase (Decrease)

 

 

Deferred Revenue

(Increase) Decrease

 

Balance at December 31, 2018

 

$

1,020

 

 

$

(122,567

)

Revenue recognized that was previously included in deferred revenue

 

 

—

 

 

 

27,596

 

Increases due to cash received

 

 

—

 

 

 

(33,080

)

Cumulative catch-up adjustment arising from changes in estimates of

   transaction price

 

 

—

 

 

 

159

 

Unbilled receivables recognized

 

 

—

 

 

 

—

 

Transferred to receivables from unbilled receivables

 

 

(779

)

 

 

—

 

Net change

 

 

(779

)

 

 

(5,325

)

Balance at March 31, 2019

 

$

241

 

 

$

(127,892

)