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Schedule II - Valuation and Qualifying Accounts - Summary of Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Jan. 02, 2016 | Jan. 03, 2015
Valuation Allowance of Deferred Tax Assets [Member] |  |  |  |
Beginning balance |  |  | $ 15,572 | $ 20,987
Charged to cost and expenses |  | 576 | 368 |
Deductions | [1],[2] |  | (15,940) | (5,415)
Ending balance |  | 576 |  | 15,572
Allowance for Doubtful Accounts [Member] |  |  |  |
Beginning balance |  | 3,044 | 3,248 | 1,889
Charged to cost and expenses |  | 1,972 | 19 | 1,432
Deductions | [1],[2] | (1,431) | (223) | (73)
Ending balance |  | $ 3,585 | $ 3,044 | $ 3,248
[1] | Deductions from deferred tax asset valuation allowance represent reversals of previously established allowances
[2] | Deductions from the receivables allowance for doubtful accounts represent uncollectible accounts written off and recoveries

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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 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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