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Goodwill - Intangibles (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 30, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | $ 610,831 |  | $ 602,330
Accumulated Amortization | (241,540) |  | (229,686)
Net | 369,291 |  | 372,644
Amortization of Intangible Assets | $ 11,930 | $ 13,520 |
Customer Relationships [Member] |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Weighted-Average Life | 11 years | 11 years |
Gross Carrying Amount | $ 482,084 |  | 475,050
Accumulated Amortization | (232,649) |  | (221,822)
Net | $ 249,435 |  | 253,228
Developed Technology [Member] |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Weighted-Average Life | 5 years | 5 years |
Gross Carrying Amount | $ 6,340 |  | 6,340
Accumulated Amortization | (4,596) |  | (4,311)
Net | $ 1,744 |  | 2,029
Amortizable Trade Name [Member] |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Weighted-Average Life | 9 years | 9 years |
Gross Carrying Amount | $ 21,407 |  | 19,940
Accumulated Amortization | (4,295) |  | (3,553)
Net | 17,112 |  | 16,387
Trade Names [Member] |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 101,000 |  | 101,000
Accumulated Amortization | 0 |  | 0
Net | $ 101,000 |  | $ 101,000

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- Definition Finite And Indefinite Lived Intangible Assets [Line Items]. + References No definition available. + Details
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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 + Details
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