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Property and Equipment Property and Equipment (Details) $ in Thousands | 1 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2015 USD ($) ft² | Jul. 04, 2015 USD ($) | Jan. 03, 2015 USD ($)
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Number of Square Feet Purchased | ft² | 90,000 |  |
Property, Plant and Equipment, Additions | $ 8,500 |  |
Property, plant and equipment, gross |  | $ 182,153 | $ 159,036
Accumulated depreciation and amortization |  | (59,430) | (57,084)
Property and equipment, net |  | 122,723 | 101,952
Land, Buildings and Improvements [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, Plant and Equipment, Additions | $ 6,300 |  |
Computer equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, gross |  | 41,269 | 38,588
Building and Building Improvements [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, gross |  | 44,469 | 30,678
Land [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, gross |  | 23,549 | 22,894
Tooling |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, gross |  | 12,991 | 12,317
Leasehold improvements |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, gross |  | 14,640 | 13,035
Furniture and office equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Capital Leased Assets, Gross |  | 600 | 600
Property, plant and equipment, gross |  | 7,155 | 4,864
Demonstration Units [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, gross |  | 980 | 972
Demonstration units |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, gross |  | 45 | 45
Vehicles |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, gross |  | 7,212 | 9,912
Construction-in-progress |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant and equipment, gross |  | 29,843 | 25,731
Capital Lease Obligations [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Accumulated depreciation and amortization |  | $ (500) | $ (400)

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