Deferred Revenue and Advance Payments (Tables)

3 Months Ended

Mar. 31, 2016

Deferred revenue and advance payments (in thousands) from customers consisted of the following, as of:


	March 31,			December 31,
	2016			2015
Current:
Deferred product licenses revenue	$	13,088		$	13,506
Deferred subscription services revenue		17,593			15,763
Deferred product support revenue		164,667			158,738
Deferred other services revenue		7,411			9,149

Gross current deferred revenue and advance payments		202,759			197,156
Less: unpaid deferred revenue		(71,322	)		(96,461	)

Net current deferred revenue and advance payments	$	131,437		$	100,695

Non-current:
Deferred product licenses revenue	$	7,573		$	5,397
Deferred subscription services revenue		2,340			2,138
Deferred product support revenue		6,425			7,607
Deferred other services revenue		755			795

Gross non-current deferred revenue and advance payments		17,093			15,937
Less: unpaid deferred revenue		(6,910	)		(6,942	)

Net non-current deferred revenue and advance payments	$	10,183		$	8,995