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Business Combinations (Notes) | 12 Months Ended
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Dec. 31, 2019
Business Combinations [Abstract] |
Business Combination Disclosure [Text Block] | Business Combinations Acquisition of Exar Corporation On May 12, 2017, pursuant to the March 28, 2017 Agreement and Plan of Merger, Eagle Acquisition Corporation, a Delaware corporation and wholly-owned subsidiary of MaxLinear, merged with and into Exar Corporation, or Exar, with Exar surviving as a wholly owned subsidiary of MaxLinear. Under this Agreement and Plan of Merger, the Company agreed to acquire all of Exar's outstanding common stock for $13.00 per share in cash. MaxLinear also assumed certain of Exar's stock-based awards in the merger. MaxLinear paid aggregate cash consideration of $688.1 million including $12.7 million of cash paid to settle certain stock-based awards that were not assumed by MaxLinear in the merger. The Company funded the transaction with cash from the balance sheet of the combined companies, including $235.8 million of cash from Exar, and the net proceeds of approximately $416.8 million from $425.0 million of new transaction debt (Note 8). During the year ended December 31, 2018, the Company made updates to estimates of certain tax-related assets acquired and liabilities assumed with a corresponding net increase to goodwill of $0.3 million related to this acquisition (Note 5). The Company completed its purchase price allocation accounting associated with this acquisition in 2018. Acquisition of Certain Assets and Assumption of Certain Liabilities of the G.hn business of Marvell Semiconductor, Inc. On April 4, 2017, the Company consummated the transactions contemplated by a share and asset acquisition agreement with Marvell Semiconductor, Inc., or Marvell, to purchase certain assets and assume certain liabilities of Marvell’s G.hn business, including its Spain legal entity, for aggregate cash consideration of $21.0 million. The Company also hired certain employees of the G.hn business outside of Spain and assumed employment obligations of the Spanish entity acquired, which is now a subsidiary of MaxLinear. The acquired assets and assumed liabilities, together with the employees who joined MaxLinear and its subsidiaries as a result of the transaction, represent a business as defined in ASC 805, Business Combinations. The Company has integrated the acquired assets and employees into its existing business. The Company completed its purchase price allocation accounting associated with this acquisition in 2018.

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- Definition The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -URI http://asc.fasb.org/topic&trid=2303972 + Details
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