REVENUE Revenue from Contract with Customer (Tables)

12 Months Ended

Dec. 31, 2019

Capitalized Contract Cost [Line Items]

Contract with Customer, Asset and Liability [Table Text Block]

Contract Asset

Contract asset activity for the year ended December 31, 2019 was as follows (in thousands):

	December 31, 2019
Contract asset at January 1, 2019	$	16,513
Revenue in excess of billings	30,715
Customer billings	(27,734		)
Contract asset at December 31, 2019	$	19,494

The increase in contract assets during the year ended December 31, 2019 is due to (i) continued growth in our subscription offerings and (ii) the timing of payments due under our enterprise network agreements which predominately are payable annually, whereas performance obligations are fulfilled on a continuous basis.