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Schedule II - Valuation and Qualifying Accounts and Reserves (Details) - Valuation and Qualifying Accounts and Reserves (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 01, 2017 | Jan. 03, 2016 | Dec. 28, 2014
Allowance for Doubtful Accounts [Member] |  |  |  |
BALANCE, AT BEGINNING OF YEAR |  | $ 4,479 | $ 5,896 | $ 7,646
CHARGED TO COSTS AND EXPENSES | [1] | (243) | 212 | (730)
CHARGED TO OTHER ACCOUNTS |  | 0 | 0 | 0
DEDUCTIONS | [2] | 456 | 1,629 | 1,020
BALANCE, AT END OF YEAR |  | 3,780 | 4,479 | 5,896
Business Restructuring Reserves [Member] |  |  |  |
BALANCE, AT BEGINNING OF YEAR |  | 104 | 7,179 | 519
CHARGED TO COSTS AND EXPENSES | [1] | 11,769 | (481) | 9,315
CHARGED TO OTHER ACCOUNTS | [3] | 8,019 | 0 | 2,717
DEDUCTIONS | [4] | 1,582 | 6,594 | 2,655
BALANCE, AT END OF YEAR |  | 10,291 | 104 | 7,179
Warranty and Sales Allowance [Member] |  |  |  |
BALANCE, AT BEGINNING OF YEAR |  | 4,759 | 3,954 | 4,935
CHARGED TO COSTS AND EXPENSES | [1] | 3,149 | 2,584 | 457
CHARGED TO OTHER ACCOUNTS |  | 0 | 0 | 0
DEDUCTIONS | [5] | 2,379 | 1,779 | 1,438
BALANCE, AT END OF YEAR |  | 5,529 | 4,759 | 3,954
Inventory Valuation Reserve [Member] |  |  |  |
BALANCE, AT BEGINNING OF YEAR |  | 15,467 | 14,784 | 13,416
CHARGED TO COSTS AND EXPENSES | [1] | 4,736 | 3,758 | 4,819
CHARGED TO OTHER ACCOUNTS |  | 0 | 0 | 0
DEDUCTIONS | [5] | 2,578 | 3,075 | 3,451
BALANCE, AT END OF YEAR |  | $ 17,625 | $ 15,467 | $ 14,784
[1] | Includes changes in foreign currency exchange rates.
[2] | Write off of bad debt, and recovering of previously provided for amounts.
[3] | Direct reduction of asset carrying value, not included in restructuring reserve.
[4] | Cash payments.
[5] | Represents credits and costs applied against reserve and adjustments to reflect actual exposure.

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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- Definition Amount of increase in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from charges to costs and expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- Definition Amount of increase in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from charges to accounts other than costs and expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- Definition Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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