Deferred Revenue and Customer Advances

9 Months Ended

Sep. 30, 2012

H. Deferred Revenue and Customer Advances

Deferred revenue and customer advances consist of the following and are included in short and long-term deferred revenue and customer advances.


	September 30, 2012		December 31, 2011
	(in thousands)
Customer advances	$	44,152	$	70,001
Maintenance, training and extended warranty		50,208		33,953
Undelivered elements		7,200		7,939
Acceptance		—		318

Total deferred revenue and customer advances	$	101,560	$	112,211

- Definition

The entire disclosure for deferred revenues at the end of the reporting period, and description and amounts of significant changes that occurred during the reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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