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Nature of Operations and Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 27, 2014 Segment | Sep. 28, 2013 | Dec. 28, 2013
Accounting Policies [Abstract] |  |  |
Number of reportable segments | 2 |  |
Cash Flow, Noncash Investing Activities Disclosure [Abstract] |  |  |
Fair value of assets acquired | $ 5,635 | $ 22,688 |
Cash paid for acquired businesses | (3,648) | (15,332) |
Liabilities assumed of acquired businesses | 1,987 | 7,356 |
Cash Flow, Noncash Financing Activities Disclosure [Abstract] |  |  |
Issuance of Company Common Stock | 2,957 | 2,515 |
Dividends Declared but Unpaid | 1,634 | 1,393 |
Restricted Cash [Abstract] |  |  |
Restricted Cash | 598 |  | 168
Banker's Acceptance Drafts [Abstract] |  |  |
Banker's acceptance drafts | 9,988 |  | 10,765
Inventories [Abstract] |  |  |
Raw Materials and Supplies | 24,063 |  | 20,836
Work in Process | 15,598 |  | 21,051
Finished Goods | 18,046 |  | 20,918
Inventories | 57,707 |  | 62,805
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |
Indefinite-Lived Intangible Assets | 8,100 |  | 8,100
Finite-Lived Intangible Assets, Net [Abstract] |  |  |
Finite-Lived Intangible Assets, Gross | 71,193 |  | 69,409
Accumulated Amortization | (34,668) |  | (30,373)
Finite-Lived Intangible Assets, Net | 35,644 |  | 39,750
Finite-Lived Intangible Assets, Translation and Purchase Accounting Adjustments [Abstract] |  |  |
Currency Translation | (881) |  | 714
Changes in the carrying amount of accrued warranty costs [Roll Forward] |  |  |
Balance at beginning of period | 4,571 | 4,462 | 4,462
Provision | 1,681 | 969 |
Usage | (2,016) | (1,366) |
Acquired | 0 | 138 |
Currency translation | (190) | 62 |
Balance at end of period | 4,046 | 4,265 | 4,571
Total Intangible Assets, Net | $ 43,744 |  | $ 47,850

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