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Geographic Information (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 27, 2013 | Jun. 28, 2013 | Mar. 29, 2013 | Dec. 31, 2012 | Sep. 28, 2012 | Jun. 29, 2012 | Mar. 30, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales | $ 87,707 | $ 85,484 | $ 85,307 | $ 83,114 | $ 66,413 | $ 69,520 | $ 70,379 | $ 65,186 | $ 341,612 | $ 271,498 | $ 304,296
Percentage of Total |  |  |  |  |  |  |  |  | 100.00% | 100.00% | 100.00%
UNITED STATES |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | 115,351 | 86,310 | 102,792
Percentage of Total |  |  |  |  |  |  |  |  | 33.80% | 31.80% | 33.80%
GERMANY |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | 57,873 | 36,554 | 43,805
Percentage of Total |  |  |  |  |  |  |  |  | 16.90% | 13.40% | 14.40%
Rest Of Europe |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | 51,349 | 45,261 | 47,832
Percentage of Total |  |  |  |  |  |  |  |  | 15.00% | 16.70% | 15.70%
Asia-Pacific |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | 75,016 | 67,717 | 72,201
Percentage of Total |  |  |  |  |  |  |  |  | 22.00% | 24.90% | 23.70%
JAPAN |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | 29,689 | 27,808 | 30,597
Percentage of Total |  |  |  |  |  |  |  |  | 8.70% | 10.20% | 10.10%
Other Country |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | $ 12,334 | $ 7,848 | $ 7,069
Percentage of Total |  |  |  |  |  |  |  |  | 3.60% | 3.00% | 2.30%

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + 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 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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