Deferred Revenue

9 Months Ended

Apr. 30, 2011

Deferred Revenue [Abstract]

Deferred Revenue

8. Deferred Revenue

Deferred revenue consists of the following:

	April 30,		July 31,
	2011		2010
	(in thousands)
Product	$	15,741	$	16,087
Professional services and support		33,570		27,298
Ratable product and related services and support		537		37
Total deferred revenue, current		49,848		43,422
Professional services and support, long-term		11,949		10,976
Ratable product and related services and support, long-term		391		—
Total deferred revenue, long-term		12,340		10,976
Total deferred revenue	$	62,188	$	54,398

Deferred product revenue relates to arrangements where not all revenue recognition criteria have been met. Deferred professional services and support revenue primarily represents customer payments made in advance for support contracts. Support contracts are typically billed on an annual basis in advance and revenue is recognized ratably over the support period, typically one to five years.

Deferred ratable product and related services and support revenue consists of revenue on transactions where VSOE of fair value of support has not been established and the entire arrangement is being recognized ratably over the support period, which typically ranges from one year to three years. The increase in ratable product and related services and support is due to the acquisition of Azalea.