Deferred Revenue and Customer Advances (Tables)

9 Months Ended

Sep. 28, 2014

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 on the balance sheet:

	September 28, 2014		December 31, 2013
	(in thousands)
Extended warranty	$	43,497	$	34,909
Equipment maintenance and training		27,703		22,455
Customer advances		5,041		4,825
Undelivered elements		7,185		6,971
Total deferred revenue and customer advances	$	83,426	$	69,160