REVENUE RECOGNITION (Tables)

6 Months Ended

Jun. 30, 2020

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 June 30, 2020
Accounts receivable	$	68,498
Short-term unbilled receivables		6,566
Long-term unbilled receivables		4,362
Short-term deferred revenue		120,150
Long-term deferred revenue		51,317

Summary of Significant Changes in Unbilled Receivables and Deferred Liabilities Balances

Significant changes in the unbilled receivables and deferred liabilities balances for the six months ended June 30, 2020 and 2019, are as follows (in thousands):

	Six Months Ended June 30, 2020
	Unbilled Receivables		Deferred Revenue
Balance at December 31, 2019	$	1,362	$	(144,862	)
Revenue recognized that was previously included in deferred revenue		—		48,249
Increases due to cash received		—		(75,683	)
Cumulative catch-up adjustment arising from changes in estimates of transaction price		—		829
Unbilled receivables recognized		9,566		—
Net change		9,566		(26,605	)
Balance at June 30, 2020	$	10,928	$	(171,467	)

	Six Months Ended June 30, 2019
	Unbilled Receivables			Deferred Revenue
Balance at December 31, 2018	$	1,020		$	(122,567	)
Revenue recognized that was previously included in deferred revenue		—			63,337
Increases due to cash received		—			(68,213	)
Cumulative catch-up adjustment arising from changes in estimates of transaction price		—			320
Unbilled receivables recognized		1,064			—
Transferred to receivables from unbilled receivables		(779	)		—
Net change		285			(4,556	)
Balance at June 30, 2019	$	1,305		$	(127,123	)