Deferred Revenue and Advance Payments (Tables)

12 Months Ended

Dec. 31, 2016

Deferred Revenue Disclosure [Abstract]

Deferred Revenue and Advance Payments

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

	December 31,
	2016			2015
Current:
Deferred product licenses revenue	$	13,023		$	13,506
Deferred subscription services revenue		18,303			15,763
Deferred product support revenue		162,781			158,738
Deferred other services revenue		10,015			9,149
Gross current deferred revenue and advance payments		204,122			197,156
Less: unpaid deferred revenue		(98,587	)		(96,461	)
Net current deferred revenue and advance payments	$	105,535		$	100,695
Non-current:
Deferred product licenses revenue	$	9,118		$	5,397
Deferred subscription services revenue		1,307			2,138
Deferred product support revenue		5,751			7,607
Deferred other services revenue		690			795
Gross non-current deferred revenue and advance payments		16,866			15,937
Less: unpaid deferred revenue		(2,951	)		(6,942	)
Net non-current deferred revenue and advance payments	$	13,915		$	8,995