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Deferred Revenue and Customer Advances (Detail) - USD ($) $ in Thousands	Jul. 05, 2015	Apr. 05, 2015	Dec. 31, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 31, 2013
Deferred Revenue Arrangement
Extended warranty	$ 43,299	$ 40,704	$ 43,300	$ 40,052	$ 33,949	$ 34,909
Product maintenance and training	36,836		30,500
Customer advances	8,159		8,875
Undelivered elements and other	14,407		8,857
Total deferred revenue and customer advances	$ 102,701		$ 91,532

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Total deferred revenue and customer advances.

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Deferred revenue and customer advances maintenance and training.

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Deferred Revenue And Customer Advances Undelivered Elements And Other

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- Definition

Refundable consideration, usually cash, held by the entity pending satisfactory completion of the entity's obligations or pending the closing of a contract.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 944



-SubTopic 210



-Section S99



-Paragraph 1



-Subparagraph (SX 210.7-03.15a)



-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount as of the balance sheet date of the aggregate extended product warranty liability. Does not include the ending balance for the standard product warranty liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 460



-SubTopic 10



-Section 50



-Paragraph 8



-Subparagraph (c)(1),(c)(5)



-URI http://asc.fasb.org/extlink&oid=51674963&loc=d3e12565-110249

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