XML 45 R32.htm IDEA: XBRL DOCUMENT
v3.20.4

Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
--- | ---
Jan. 02, 2021
Goodwill and Other Intangible Assets |
Summary of goodwill activity | The following summarizes the activity in goodwill for the years ended January 2, 2021 and December 28, 2019 (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended
​ | ​ | January 2, | ​ | December 28,
​ |  | 2021 |  | 2019
Beginning balance |  | $ | 398,402 |  | $ | 397,344
Additions due to business combinations | ​ |  | 233,530 | ​ |  | 1,058
Ending balance | ​ | $ | 631,932 | ​ | $ | 398,402
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 | ​ | January 2, 2021 | ​ | December 28, 2019
​ | ​ | Period | ​ | Gross | ​ | Accumulated | ​ | Gross | ​ | Accumulated
​ |  | (Years) |  | Amount |  | Amortization |  | Amount |  | Amortization
Subject to amortization: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Developed technology |  | 8 | ​ | $ | 261,939 | ​ | $ | (125,435) | ​ | $ | 219,695 | ​ | $ | (111,634)
Customer relationships |  | 5 | ​ |  | 43,245 | ​ |  | (31,877) | ​ |  | 40,795 | ​ |  | (22,742)
Trademarks |  | 5 | ​ |  | 12,771 | ​ |  | (6,312) | ​ |  | 12,310 | ​ |  | (4,145)
​ | ​ | 8 | ​ | ​ | 317,955 | ​ | ​ | (163,624) | ​ | ​ | 272,800 | ​ | ​ | (138,521)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Not subject to amortization: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
In-process research and development | ​ | Not amortized | ​ | ​ | 11,753 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total intangible assets | ​ | ​ | ​ | $ | 329,708 | ​ | $ | (163,624) | ​ | $ | 272,800 | ​ | $ | (138,521)
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 |  | ​ |
2021 | ​ | $ | 44,358
2022 | ​ | ​ | 33,046
2023 | ​ | ​ | 24,324
2024 | ​ | ​ | 21,864
2025 | ​ | ​ | 12,200

X
- 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
Name: | slab_ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTableTextBlock
Namespace Prefix: | slab_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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=121556970&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=121556970&loc=d3e13854-109267 + Details
Name: | us-gaap_ScheduleOfGoodwillTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration