MaxLinear, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Business Combinations (Details)

Business Combinations (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended								12 Months Ended
	Sep. 09, 2020	Jul. 31, 2020	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	May 12, 2017
Business Acquisition [Line Items]
Incremental Loans														$ 160,000
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Fair Value Mark Up On Inventory			$ 32,900								$ 32,900
Business Acquisition, Share Price	$ 21.24
Business Combination, Amortization of Inventory Step-Up											32,945	$ (32,945)
Goodwill			302,828				$ 238,330				302,828	238,330	$ 238,330
Business Acquisition Proforma Amortization of Intangible Assets											11,428	17,583
Business Acquisition, Pro Forma Net Income (Loss)											(101,783)	(152,070)
Finite-lived Intangible Assets Acquired											70,700	0
Indefinite-lived Intangible Assets, Purchase Accounting Adjustments											7,200	0
Net revenue			194,716	$ 156,633	$ 65,220	$ 62,027	70,018	$ 80,020	$ 82,507	$ 84,635	478,596	317,180	384,997
Business Acquisition, Revenue Reported by Acquired Entity for Last Annual Period											224,569	390,959
Business Acquisition, Pro Forma Revenue											703,165	$ 708,139
Business Combination, Acquisition Related Costs											14,200
Business Combination ProForma Nonrecurring Adjustment											$ 33,700
Weighted Average Basic Shares Outstanding, Pro Forma											73,133,000	71,809,000
Pro Forma Weighted Average Shares Outstanding, Diluted											73,133,000	71,809,000
Net loss			$ (24,672)	$ (36,645)	$ (21,807)	$ (15,469)	$ (8,104)	$ (4,714)	$ (2,229)	$ (4,851)	$ (98,593)	$ (19,898)	(26,199)
Business Acquisition Proforma, Earnings of Acquiree											(63,882)	(97,368)
Business Acquisition Proforma Depreciation of Property, Plant and Equipment											5,810	2,020
Business Combination, Transaction Costs											14,243	(14,243)
Business Acquisition Pro-Forma Interest Expense											(4,963)	2,816
Business Acquisition Pro Forma Other Expenses											1,867	(7,604)
Business Acquisition Proforma Acquisitions Tax Provision											$ (638)	$ (2,431)
Business Acquisition, Pro Forma Earnings Per Share, Basic											$ (1.39)	$ (2.12)
Business Acquisition, Pro Forma Earnings Per Share, Diluted											$ (1.39)	$ (2.12)
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual											$ 209,700
Business Combination, Pro Forma Information, Gross Profit of Acquiree since Acquisition Date, Actual											110,700
Business Combination ProForma Nonrecurring Adjustment, Actual											36,300
Amortization											61,318	$ 57,015	67,947
Nonrecurring Adjustment [Member]
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Net Income (Loss)											(101,783)	(152,070)
Inventory step-up [Member]
Business Acquisition [Line Items]
Business Combination, Amortization of Inventory Step-Up											32,900
Backlog [Member]
Business Acquisition [Line Items]
Business Acquisition Proforma Amortization of Intangible Assets											800
Amortization											3,400
WiFi and Broadband assets business
Business Acquisition [Line Items]
Business Combination, Consideration Transferred		$ 150,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities		(68)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Price Protection		(413)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory		67,100
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		17,641
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		58,000
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets		457
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other		(7,916)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other		(8,197)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net		126,604
Goodwill		23,396
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		150,000
Finite-lived Intangible Assets Acquired		$ 50,800
Business Combination, Separately Recognized Transactions, Description		25.0 million
WiFi and Broadband assets business \| In Process Research and Development [Member]
Business Acquisition [Line Items]
Indefinite-lived Intangible Assets, Purchase Accounting Adjustments		$ 7,200
WiFi and Broadband assets business \| Developed Technology Rights [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		7 years
WiFi and Broadband assets business \| Technology-Based Intangible Assets [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired		$ 43,200
WiFi and Broadband assets business \| Customer-Related Intangible Assets [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		5 years
Finite-lived Intangible Assets Acquired		$ 6,800
WiFi and Broadband assets business \| Backlog [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		6 months 29 days
Finite-lived Intangible Assets Acquired		$ 800
NanoSemi, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 61,180
Deferred payments of purchase price for acquisitions, at fair value	34,100										34,100	0	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	175
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets	879
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	177
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	1,805
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	19,900
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable	(602)
Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Lease Obligation	(1,546)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	(164)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	20,078
Goodwill	41,102
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	61,180
Common stock issued in acquisitions, at fair value	$ 17,080										$ 17,080	$ 0	$ 0
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	804,163
NanoSemi, Inc. [Member] \| Developed Technology Rights [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years
NanoSemi, Inc. [Member] \| Technology-Based Intangible Assets [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	$ 17,500
NanoSemi, Inc. [Member] \| Trademarks and Trade Names [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years
Finite-lived Intangible Assets Acquired	$ 1,000
NanoSemi, Inc. [Member] \| Customer-Related Intangible Assets [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Finite-lived Intangible Assets Acquired	$ 900
NanoSemi, Inc. [Member] \| Backlog [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years 3 months 29 days
Finite-lived Intangible Assets Acquired	$ 500
NanoSemi, Inc. [Member] \| Potential Contingent Consideration - NanoSemi [Member]
Business Acquisition [Line Items]
Deferred payments of purchase price for acquisitions, at fair value	0
NanoSemi, Inc. [Member] \| Accrued Liabilities [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	(323)
NanoSemi, Inc. [Member] \| Accrued Compensation [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	(223)
Cash [Member] \| NanoSemi, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	10,000
Deferred payment of consideration in business acquisition [Member] \| NanoSemi, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	35,000
Potential Contingent Consideration - NanoSemi [Member] \| NanoSemi, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 35,000