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Industry Segment, Geographic Information and Significant Customers - Segment Information about Revenue, Cost of Revenue, Gross Margin and Income before Income Taxes (Detail) - USD ($)
$ in Thousands

3 Months Ended

Apr. 02, 2016

Mar. 28, 2015

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Revenue

$ 130,804

$ 117,961

Cost of revenue

^[1]

68,843

64,253

Gross margin

61,961

53,708

Research and development

^[1]

19,728

19,032

Selling and marketing

^[1]

19,940

14,188

General and administrative

^[1]

16,764

12,589

Other income (expense), net

200

(794)

Income before income taxes

5,729

7,105

Home Robots

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Revenue

127,687

111,085

Cost of revenue

60,590

54,282

Gross margin

67,097

56,803

Defense & Security

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Revenue

^[2]

3,075

6,526

Cost of revenue

^[2]

2,564

4,358

Gross margin

^[2]

511

2,168

Other

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Revenue

42

350

Cost of revenue

5,689

5,613

Gross margin

$ (5,647)

$ (5,263)

[1]	Total stock-based compensation recorded in the three months ended April 2, 2016 and March 28, 2015 included in the above figures breaks down by expense classification as follows: Three Months Ended April 2, 2016 March 28, 2015Cost of revenue$221 $215Research and development829 832Selling and marketing485 309General and administrative2,357 1,751
[2]	(1)The Company completed the sale of its defense and security business unit on April 4, 2016.

X

- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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