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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 28, 2019
Goodwill and Other Intangible Assets |
Summary of goodwill activity | The following summarizes the activity in goodwill for the years ended December 28, 2019 and December 29, 2018 (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended
​ | ​ | December 28, | ​ | December 29,
​ |  | 2019 |  | 2018
Beginning balance |  | $ | 397,344 |  | $ | 288,227
Additions due to business combinations | ​ |  | 1,058 | ​ |  | 109,117
Ending balance | ​ | $ | 398,402 | ​ | $ | 397,344
Schedule of gross carrying amount and accumulated amortization of other intangible assets | The gross carrying amount and accumulated amortization of other intangible assets are as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Weighted-Average | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Amortization | ​ | December 28, 2019 | ​ | December 29, 2018
​ | ​ | Period | ​ | Gross | ​ | Accumulated | ​ | Gross | ​ | Accumulated
​ |  | (Years) |  | Amount |  | Amortization |  | Amount |  | Amortization
Core and developed technology |  | 8 | ​ | $ | 219,695 | ​ | $ | (111,634) | ​ | $ | 237,265 | ​ | $ | (102,116)
Customer relationships |  | 6 | ​ |  | 40,795 | ​ |  | (22,742) | ​ |  | 46,890 | ​ |  | (21,075)
Trademarks |  | 7 | ​ |  | 12,310 | ​ |  | (4,145) | ​ |  | 12,310 | ​ |  | (2,442)
Total | ​ | 8 | ​ | $ | 272,800 | ​ | $ | (138,521) | ​ | $ | 296,465 | ​ | $ | (125,633)
Schedule of estimated aggregate amortization expense for intangible assets subject to amortization | The estimated aggregate amortization expense for intangible assets subject to amortization for each of the five succeeding fiscal years is as follows (in thousands): ​
​ | ​ | ​ | ​
Fiscal Year |  | ​ |
2020 | ​ | $ | 38,100
2021 | ​ | ​ | 33,266
2022 | ​ | ​ | 23,801
2023 | ​ | ​ | 18,029
2024 | ​ | ​ | 15,569

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- Definition Tabular disclosure of characteristics, including initial carrying value, residual amount, weighted-average useful life, of finite-lived intangible assets and indefinite-lived intangible assets by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. + References No definition available. + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + 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) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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