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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) | 12 Months Ended
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Dec. 30, 2012 | Jan. 01, 2012 | Jan. 02, 2011
Accounting Policies [Line Items] |  |  |
Research and development expense | $ 12,400,000 | $ 12,100,000 | $ 11,100,000
Original maturity period of cash and cash equivalents | Three months or less |  |
Amount of interest | 23,100,000 | 23,700,000 | 34,300,000
Income tax payments | 10,000,000 | 19,900,000 | 13,900,000
Income tax refunds | 100,000 | 4,400,000 | 800,000
Interest costs capitalized | 700,000 | 600,000 | 600,000
Depreciation expense | 24,200,000 | 22,300,000 | 18,200,000
Accumulated amortization | 77,300,000 | 77,300,000 |
Cumulative impairment losses recognized | 212,600,000 | 212,600,000 |
Goodwill | 75,672,000 | 74,557,000 |
Other intangible assets | 2,500,000 | 2,000,000 |
Amortization expense related to intangible assets | 400,000 | 700,000 | 400,000
Decline of goodwill fair value estimates, percentage | 10.00% |  |
Goodwill impairment | 0 |  |
Product warranties period, lower range | 10 years |  |
Product warranties period, upper range | 20 years |  |
Warranty reserves | 1,200,000 | 900,000 |
Foreign exchange translation gains (losses) | 8,500,000 | (7,600,000) | (1,800,000)
Weighted average fair value of stock options granted |  | $ 7.37 | $ 6.86
Allowance for doubtful accounts | $ 8,800,000 | $ 8,900,000 |
Minimum [Member] |  |  |
Accounting Policies [Line Items] |  |  |
Years of amortization of goodwill | 25 years |  |
Maximum [Member] |  |  |
Accounting Policies [Line Items] |  |  |
Years of amortization of goodwill | 40 years |  |
Buildings and improvements [Member] | Minimum [Member] |  |  |
Accounting Policies [Line Items] |  |  |
Estimated useful life in years | 10 years |  |
Buildings and improvements [Member] | Maximum [Member] |  |  |
Accounting Policies [Line Items] |  |  |
Estimated useful life in years | 40 years |  |
Furniture and equipment [Member] | Minimum [Member] |  |  |
Accounting Policies [Line Items] |  |  |
Estimated useful life in years | 3 years |  |
Furniture and equipment [Member] | Maximum [Member] |  |  |
Accounting Policies [Line Items] |  |  |
Estimated useful life in years | 12 years |  |

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- Definition The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 52 -Paragraph 30 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450189&loc=d3e30690-110894 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6450189&loc=d3e30700-110894 + Details
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