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Deferred Revenue and Customer Advances (Detail) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | --- | --- | ---
Deferred Revenue Arrangement |  |  |  |
Extended warranty | $ 46,753 | $ 46,499 | $ 43,300 | $ 34,909
Equipment maintenance and training | 39,037 | 30,616 |  |
Customer advances, undelivered elements and other | 22,151 | 34,157 |  |
Total deferred revenue and customer advances | $ 107,941 | $ 111,272 |  |

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- Definition Deferred revenue and customer advances maintenance and training. + References No definition available. + Details
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- Definition Deferred revenue and customer advances undelivered elements and other. + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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- Definition 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=68068213&loc=d3e12565-110249 + Details
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