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Acquisition Acquisition (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 23, 2018 | Jun. 24, 2018 | Mar. 25, 2018 | Sep. 24, 2017 | Sep. 25, 2016 | Jun. 24, 2018 | Mar. 06, 2018 | Jun. 25, 2017
Purchase Price Allocation [Line Items] |  |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  | 13 years 9 months 16 days |  |  |  |  |
Business Acquisition, Goodwill, Expected Tax Deductible Amount |  |  |  |  |  |  | $ 245,000 |
Business Acquisition, Transaction Costs | $ 120 |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory |  |  |  |  |  |  | 22,500 |
Business Acquisition, Date of Acquisition Agreement |  |  | Mar. 06, 2018 |  |  |  |  |
Business Acquisition, Name of Acquired Entity |  |  | Infineon Technologies AG (Infineon) Radio Frequency Power Business (RF Power) |  |  |  |  |
Business Combination, Consideration Transferred |  | $ 2,000 | $ 427,000 |  |  | $ 429,000 |  |
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | 0 |  |  | $ 1,850 | $ 2,800 |  |  |
Cash consideration paid to shareholders |  |  |  |  | $ 13,800 |  |  |
Business Combination, Contingent Consideration, Liability |  |  |  |  |  |  |  | $ 4,600
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  |  |  |  |  |  | 11,722 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other |  |  |  |  |  |  | 433 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets |  |  |  |  |  |  | 432,612 |
Finite-Lived Intangible Assets, Gross |  |  |  |  |  |  | 149,000 |
Goodwill | $ 620,330 | $ 620,330 |  |  |  | $ 620,330 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable |  |  |  |  |  |  | (39) |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities |  |  |  |  |  |  | (3,411) |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  |  |  |  |  |  | (3,450) |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net |  |  |  |  |  |  | 429,162 |
Developed technology |  |  |  |  |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  |  |  |  |  |  | 44,000 |
Finite-Lived Intangible Asset, Useful Life | 14 years |  |  |  |  |  |  |
Customer relationships |  |  |  |  |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  |  |  |  |  |  | 92,000 |
Finite-Lived Intangible Asset, Useful Life | 15 years |  |  |  |  |  |  |
Leases, Acquired-in-Place, Market Adjustment [Member] |  |  |  |  |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  |  |  |  |  |  | 1,000 |
Leases, Acquired-in-Place [Member] |  |  |  |  |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 10 years |  |  |  |  |  |  |
Non-compete agreements |  |  |  |  |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  |  |  |  |  |  | $ 12,000 |
Finite-Lived Intangible Asset, Useful Life | 4 years |  |  |  |  |  |  |

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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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