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Nature of Business and Basis of Presentation - Textual (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 24, 2016 | Sep. 26, 2015 | Sep. 24, 2016 | Sep. 26, 2015
Accounting Policies [Line Items] |  |  |  |
Fiscal year/fiscal quarter duration |  |  | 91 days | 91 days
Products | $ 49,631 | $ 36,414 | $ 136,290 | $ 113,689
Cost of products | $ 22,810 | 19,242 | $ 62,625 | 59,106
Maximum period of delivery to customers |  |  | 6 months |
Maximum period services are provided over the fixed arrangement term |  |  | 12 months |
Reclassification [Member] |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Products |  | 800 |  | 7,600
Cost of products |  | $ 100 |  | $ 2,900
Minimum [Member] |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Fiscal year/fiscal quarter duration |  |  | 364 days |
Maximum [Member] |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Fiscal year/fiscal quarter duration |  |  | 371 days |

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- Definition Total costs related to goods produced and sold during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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