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Summary of Significant Accounting Policies - Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Jan. 02, 2016
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying amount | $ 289,449 | $ 299,004
Accumulated Amortization | $ (168,369) | $ (139,279)
Customer Lists [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Weighted Avg Remaining LIfe | 5 years 6 months | 6 years 1 month
Gross Carrying amount | $ 251,025 | $ 264,373
Accumulated Amortization | $ (136,895) | $ (109,096)
Backlog [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Weighted Avg Remaining LIfe | 0 months | 4 months
Gross Carrying amount | $ 13,550 | $ 13,763
Accumulated Amortization | $ (13,550) | $ (12,963)
Developed Technology Rights [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated Weighted Avg Remaining LIfe | 4 years 9 months | 3 years 9 months
Gross Carrying amount | $ 24,874 | $ 20,868
Accumulated Amortization | (17,924) | (17,220)
Tradenames And Trademarks [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | $ 575,091 | $ 589,705

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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