REVENUE Deferred Revenue Activity (Tables)

3 Months Ended

Mar. 31, 2020

Deferred Revenue Arrangement [Line Items]

Deferred Revenue, by Arrangement, Disclosure [Table Text Block]

Deferred Revenue

Deferred revenue activity for the three months ended March 31, 2020 was as follows (in thousands):

	March 31, 2020
Deferred revenue at January 1, 2020	$	97,901
Billings deferred	28,687
Recognition of prior deferred revenue	(31,176		)
Deferred revenue at March 31, 2020	$	95,412

A summary of the significant performance obligations included in deferred revenue as of March 31, 2020 is as follows (in thousands):

	March 31, 2020
Product	$	5,311
Subscription	1,501
Support contracts	73,465
Implied PCS	10,769
Professional services, training and other	4,366
Deferred revenue at March 31, 2020	$	95,412