MaxLinear (MXL) 10-Q 8 Aug 16 2016 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2016	Aug. 03, 2016
Entity Information [Line Items]
Entity Registrant Name	MAXLINEAR INC
Trading Symbol	MXL
Entity Central Index Key	1,288,469
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Class A Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		57,356,324
Common Class B [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		6,666,777

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 147,582	$ 67,956
Short-term investments, available-for-sale	28,899	43,300
Accounts receivable, net	44,340	42,399
Inventory	25,604	32,443
Prepaid expenses and other current assets	4,982	3,904
Total current assets	251,407	190,002
Property and equipment, net	21,134	21,858
Long-term investments, available-for-sale	0	19,242
Intangible assets, net	60,675	51,355
Goodwill	56,714	49,779
Other long-term assets	1,982	2,269
Total assets	391,912	334,505
Current liabilities:
Accounts payable	8,114	6,389
Deferred revenue and deferred profit	5,798	4,066
Accrued price protection liability	18,270	20,026
Accrued expenses and other current liabilities	13,125	15,368
Accrued compensation	10,313	9,983
Total current liabilities	55,620	55,832
Deferred rent	10,040	11,427
Other long-term liabilities	5,064	4,322
Commitments and contingencies	0	0
Stockholders’ equity:
Preferred Stock, Value, Issued	0	0
Common stock	0	0
Additional paid-in capital	400,093	384,961
Accumulated other comprehensive loss	(953)	(822)
Accumulated deficit	(77,959)	(121,221)
Total stockholders’ equity	321,188	262,924
Total liabilities and stockholders’ equity	391,912	334,505
Class A Common Stock [Member]
Stockholders’ equity:
Common stock	6	5
Common Class B [Member]
Stockholders’ equity:
Common stock	$ 1	$ 1

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) - $ / shares	Jun. 30, 2016	Dec. 31, 2015
Preferred stock, par value (usd per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (shares)	25,000,000	25,000,000
Preferred stock, shares issued (shares)	0	0
Preferred stock, shares outstanding (shares)	0	0
Common stock, par value (usd per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (shares)	550,000,000	550,000,000
Common stock, shares issued (shares)	0	0
Common stock, shares outstanding (shares)	0	0
Class A Common Stock [Member]
Common stock, par value (usd per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (shares)	500,000,000	500,000,000
Common stock, shares issued (shares)	57,345,000	55,737,000
Common stock, shares outstanding (shares)	57,345,000	55,737,000
Class B Common Stock [Member]
Common stock, par value (usd per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (shares)	500,000,000	500,000,000
Common stock, shares issued (shares)	6,665,000	6,665,000
Common stock, shares outstanding (shares)	6,665,000	6,665,000

Consolidated Statemetn of Opera

Consolidated Statemetn of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Net revenue	$ 101,687	$ 70,824	$ 204,372	$ 106,220
Cost of net revenue	38,774	43,882	80,289	57,607
Gross profit	62,913	26,942	124,083	48,613
Operating expenses:
Research and development	24,037	23,993	47,789	39,274
Selling, general and administrative	16,505	23,620	30,115	34,564
Restructuring charges	0	11,389	2,106	11,389
Total operating expenses	40,542	59,002	80,010	85,227
Income (loss) from operations	22,371	(32,060)	44,073	(36,614)
Interest income	167	51	337	121
Other income (expense), net	124	(22)	(74)	(56)
Income (loss) before income taxes	22,662	(32,031)	44,336	(36,549)
Provision for income taxes (income tax benefit)	78	(1,384)	1,071	(1,180)
Net income (loss)	$ 22,584	$ (30,647)	$ 43,265	$ (35,369)
Net income (loss) per share:
Basic	$ 0.36	$ (0.58)	$ 0.69	$ (0.78)
Diluted	$ 0.33	$ (0.58)	$ 0.64	$ (0.78)
Shares used to compute net income (loss) per share:
Basic	63,470	52,586	63,056	45,367
Diluted	67,520	52,586	67,110	45,367

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ 22,584	$ (30,647)	$ 43,265	$ (35,369)
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) on investments, net of tax of $0 for the three and six months ended June 30, 2016 and 2015		48	(2)	174	33
Less: Reclassifications to realized gain on sales and maturities of investments, net of tax of $0 for the three and six months ended June 30, 2016 and 2015		(50)	0	(50)	0
Unrealized gain (loss) on investments, net of tax		(2)	(2)	124	33
Foreign currency translation adjustments, net of tax benefit of $27 for the three and six months ended June 30, 2016 and 2015 (1)	[1]	(363)	68	(255)	80
Foreign currency translation adjustments, net of tax		(363)	68	(255)	80
Other comprehensive income (loss)		(365)	66	(131)	113
Total comprehensive income (loss)		$ 22,219	$ (30,581)	$ 43,134	$ (35,256)
[1]	(1) Tax amount recognized in Other Long-Term Liabilities of the Consolidated Balance Sheets as part of long-term deferred tax liabilities.

Statement of Comprehensive Inco

Statement of Comprehensive Income Consolidated Statement of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Other comprehensive income (loss), Unrealized Holding Gain (Loss) on Securities Arising During the Period, tax	$ 0	$ 0	$ 0	$ 0
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	$ (27)	$ 0	$ (27)	$ 0

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating Activities
Net income (loss)	$ 43,265	$ (35,369)
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Amortization and depreciation	9,935	13,866
Provision for inventory reserves	9	0
Amortization of investment premiums, net	83	204
Amortization of inventory step-up	336	13,286
Stock-based compensation	10,211	10,020
Deferred income taxes	133	(1,960)
Loss on disposal of property and equipment	48	0
Gain on sale of available-for-sale securities	(50)	0
Change in fair value of contingent consideration	110	(132)
Impairment of lease	0	5,593
Gain on foreign currency	(46)	0
Excess tax benefits on stock based awards	(5,114)	0
Changes in operating assets and liabilities:
Accounts receivable	(1,941)	6,176
Inventory	7,409	(11,650)
Prepaid and other assets	(805)	3,384
Accounts payable, accrued expenses and other current liabilities	4,967	434
Accrued compensation	3,540	1,503
Deferred revenue and deferred profit	1,732	523
Accrued price protection liability	(1,756)	2,275
Other long-term liabilities	(767)	249
Net cash provided by operating activities	71,299	8,402
Investing Activities
Purchases of property and equipment	(4,710)	(1,460)
Purchases of intangible assets	(390)	0
Cash used in acquisition, net of cash acquired	(21,000)	(3,615)
Purchases of available-for-sale securities	(47,277)	(19,968)
Maturities of available-for-sale securities	81,011	53,108
Net cash provided by investing activities	7,634	28,065
Financing Activities
Repurchases of common stock	(3)	(101)
Net proceeds from issuance of common stock	4,285	3,455
Minimum tax withholding paid on behalf of employees for restricted stock units	(3,593)	(3,161)
Equity issuance costs	0	(705)
Net cash provided by (used in) financing activities	689	(512)
Effect of exchange rate changes on cash and cash equivalents	4	80
Increase in cash and cash equivalents	79,626	36,035
Cash and cash equivalents at beginning of period	67,956	20,696
Cash and cash equivalents at end of period	147,582	56,731
Supplemental disclosures of cash flow information:
Cash paid for income taxes	1,263	7
Issuance of restricted stock units to Physpeed continuing employees	578	0
Issuance of accrued share-based bonus plan	$ 3,652	$ 2,722

Organization and Summary of Sig

Organization and Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	Organization and Summary of Significant Accounting Policies Description of Business MaxLinear, Inc. was incorporated in Delaware in September 2003. MaxLinear, Inc., together with its wholly owned subsidiaries, collectively referred to as MaxLinear, or the Company, is a provider of radio-frequency and mixed-signal integrated circuits for cable and satellite broadband communications and the connected home, and for data center, metro, and long-haul transport network applications and wireless infrastructure. MaxLinear's customers include module makers, original equipment manufacturers, or OEMs, and original design manufacturers, or ODMs, who incorporate the Company’s products in a wide range of electronic devices including Pay-TV operator set-top boxes, DOCSIS data and voice gateways, hybrid analog and digital televisions and consumer terrestrial set-top boxes, Direct Broadcast Satellite outdoor units, optical modules for data center, metro, and long-haul transport network applications, and RF transceivers and modem solutions for wireless carrier infrastructure applications. The Company is a fabless semiconductor company focusing its resources on the design, sale and marketing of its products. Basis of Presentation and Principles of Consolidation The accompanying unaudited consolidated financial statements include the accounts of MaxLinear, Inc. and its wholly owned subsidiaries and have been prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP, for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and disclosures required by GAAP for complete financial statements. All intercompany transactions and investments have been eliminated in consolidation. In the opinion of management, the Company’s unaudited consolidated interim financial statements contain adjustments, including normal recurring accruals necessary to present fairly the Company’s consolidated financial position, results of operations, comprehensive income (loss) and cash flows. The consolidated balance sheet as of December 31, 2015 was derived from the Company’s audited consolidated financial statements at that date. The accompanying unaudited consolidated interim financial statements should be read in conjunction with the audited consolidated financial statements and related notes thereto for the year ended December 31, 2015 included in the Company’s Annual Report on Form 10-K filed by the Company with the Securities and Exchange Commission, or the SEC, on February 17, 2016, as amended by Amendment No. 1 filed with the SEC on April 28, 2016 , or the Annual Report. Certain prior period amounts have been reclassified to conform with the current period presentation. Interim results for the three and six months ended June 30, 2016 are not necessarily indicative of the results that may be expected for the fiscal year ending December 31, 2016 . Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the unaudited consolidated financial statements and accompanying notes to unaudited consolidated financial statements. Actual results could differ from those estimates. Summary of Significant Accounting Policies Refer to the Company’s Annual Report for a summary of significant accounting policies. There have been no material changes to our significant accounting policies during the six months ended June 30, 2016 , other than the adoption of ASU No. 2016-09, Improvements to Share-Based Compensation during the three months ended June 30, 2016, as discussed under Recent Accounting Pronouncements below. Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board, or FASB, issued new accounting guidance related to revenue recognition. This new standard will replace all current U.S. GAAP guidance on this topic and eliminate all industry-specific guidance. The new revenue recognition standard provides a unified model to determine when and how revenue is recognized. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration for which the entity expects to be entitled in exchange for those goods or services. This guidance will be effective for the Company beginning in the first quarter of fiscal year 2018 and can be applied either retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption. The Company is currently evaluating the impact of adopting this new accounting standard on its consolidated financial position and results of operations. In July 2015, the FASB issued ASU 2015-11, Simplifying the Measurement of Inventory, which requires inventory to be subsequently measured using the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. The amendments in this Update are effective for the Company beginning in the first quarter of fiscal 2017 and should be applied prospectively. The Company is currently evaluating the impact that this guidance will have on the Company's consolidated financial position and results of operations. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The amendments in this Update require a lessee to recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term for all leases with terms greater than twelve months. For leases less than twelve months, an entity is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. The amendments in this Update are effective for the Company for fiscal years beginning with fiscal year 2019, including interim periods within those years, with early adoption permitted. The Company is currently in the process of evaluating the impact of adoption of the amendments in this Update on the Company’s consolidated financial position and results of operations; however, adoption of the amendments in this Update are expected to be material for most entities who have material leases greater than twelve months. In March 2016, the FASB issued ASU No. 2016-08, Principal versus Agent Considerations (Reporting Revenue Gross versus Net ) to clarify the revenue recognition implementation guidance on principal versus agent considerations. The amendments in this Update clarify that when another party is involved in providing goods or services to a customer, an entity that is the principal has obtained control of a good or service before it is transferred to a customer, and provides indicators to assist an entity in determining whether it controls a specified good or service prior to the transfer to the customer. An entity that is the principal recognizes revenue in the gross amount of consideration to which it expects to be entitled in exchange for the specified good or service transferred to the customer, whereas an agent recognizes revenue in the amount of any fee or commission to which it expects to be entitled in exchange for arranging for the specified good or service to be provided by the other party. The amendments in this Update are effective for the Company beginning in the first quarter of fiscal year 2018, concurrent with the new revenue recognition standard. The Company is currently evaluating the impact of adopting the new revenue recognition accounting standard, including this Update, on its consolidated financial position and results of operations. In March 2016, the FASB issued ASU No. 2016-09, Improvements to Share-Based Compensation to simplify certain aspects of accounting for share-based payment transactions associated with income taxes, classification as equity or liabilities, and classification on the statement of cash flows. The amendments in this Update are effective for the Company for fiscal years beginning with fiscal year 2017, including interim periods within those years, with early adoption permitted. Early adoption, if elected, must be completed for all of the amendments in the same period. The new guidance requires, among other things, excess tax benefits and tax deficiencies to be recorded in the income statement in the provision for income taxes when awards vest or are settled. Also, because excess tax benefits are no longer recognized in additional paid-in capital, the assumed proceeds from applying the treasury stock method when computing earnings per share is amended to exclude the amount of excess tax benefits that would be recognized in additional paid-in capital. The Company adopted ASU No. 2016-09 during the quarter ended June 30, 2016. The impact of adoption was to reduce the provision for income taxes and increase net income for the three and six months ended June 30, 2016 by $3.5 million and $5.1 million , respectively, and increase basic net income per share by $0.06 and $0.08 for the three and six months ended June 30, 2016 and increase diluted net income per share by $0.04 and $0.06 for the three and six months ended June 30, 2016 (Note 2). The impact of adoption on the Company's previously reported results for the three months ended March 31, 2016 are as follows: Three months ended March 31, 2016 As reported As adjusted (in thousands, except per share amounts) Provision for income taxes $ 2,558 $ 993 Net income $ 19,116 $ 20,681 Basic earnings per share $ 0.31 $ 0.33 Diluted earnings per share $ 0.29 $ 0.31 Diluted weighted average shares outstanding 65,818 66,643 There was no cumulative effect on retained earnings in the consolidated balance sheet since the Company has a full valuation allowance against U.S. deferred tax assets. The Company elected to continue to estimate forfeitures of share-based awards resulting in no impact to stock-based compensation expense, and is also continuing to classify cash paid by the Company when directly withholding shares for tax withholding purposes in cash flows from financing activities.

Net Income (Loss) Per Share

Net Income (Loss) Per Share	6 Months Ended
	Jun. 30, 2016
Earnings Per Share [Abstract]
Net Loss Per Share	Net Income (Loss) Per Share Net income (loss) per share is computed as required by the accounting standard for earnings per share, or EPS. Basic EPS is calculated by dividing net income (loss) by the weighted-average number of common shares outstanding for the period, without consideration for common stock equivalents. Diluted EPS is computed by dividing net income (loss) by the weighted-average number of common shares outstanding for the period and the weighted-average number of dilutive common stock equivalents outstanding for the period determined using the treasury-stock method. For purposes of this calculation, common stock options, restricted stock units and restricted stock awards are considered to be common stock equivalents and are only included in the calculation of diluted EPS when their effect is dilutive. As a result of the Company's adoption of ASU No. 2016-09 in the second quarter 2016, excess tax benefits and tax deficiencies are no longer recognized in additional paid-in capital. As a result, when computing diluted EPS using the treasury stock method, fewer hypothetical shares can be repurchased resulting in a greater number of incremental shares being issued upon the exercise of share-based payment awards. The impact of adoption of ASU No. 2016-09 on diluted income (loss) per share (Note 1) is to increase net income due to the inclusion of excess tax benefits in the provision for income taxes (income tax benefit) by $3.5 million and $5.1 million for the three and six months ended June 30, 2016 , and to increase the number of incremental shares used in computing diluted EPS by 910,000 shares and 868,000 shares for the three and six months ended June 30, 2016 , or an increase to diluted net income per share of $0.04 per share and $0.06 per share for the three and six months ended June 30, 2016 . The Company has two classes of stock outstanding, Class A common stock and Class B common stock. The economic rights of the Class A common stock and Class B common stock, including rights in connection with dividends and payments upon a liquidation or merger are identical, and the Class A common stock and Class B common stock will be treated equally, identically and ratably, unless differential treatment is approved by the Class A common stock and Class B common stock, each voting separately as a class. The Company computes basic earnings per share by dividing net income (loss) by the weighted average number of shares of Class A and Class B common stock outstanding during the period. For diluted earnings per share, the Company divides net income (loss) by the sum of the weighted average number of shares of Class A and Class B common stock outstanding and the potential number of shares of dilutive Class A and Class B common stock outstanding during the period. Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (in thousands, except per share amounts) Numerator: Net income (loss) $ 22,584 $ (30,647 ) $ 43,265 $ (35,369 ) Denominator: Weighted average common shares outstanding—basic 63,470 52,586 63,056 45,367 Dilutive common stock equivalents 4,050 — 4,054 — Weighted average common shares outstanding—diluted 67,520 52,586 67,110 45,367 Net income (loss) per share: Basic $ 0.36 $ (0.58 ) $ 0.69 $ (0.78 ) Diluted $ 0.33 $ (0.58 ) $ 0.64 $ (0.78 ) The Company excluded 1.2 million and 0.7 million common stock equivalents for the three and six months ended June 30, 2016 , respectively, and 4.3 million and 5.7 million common stock equivalents for the three and six months ended June 30, 2015 , respectively, resulting from outstanding equity awards for the calculation of diluted net income (loss) per share due to their anti-dilutive nature.

Business Combinations Business

Business Combinations Business Combinations (Notes)	6 Months Ended
	Jun. 30, 2016
Business Combinations [Abstract]
Business Combination Disclosure [Text Block]	Business Combination Acquisition of Certain Assets and Assumption of Certain Liabilities of the Wireless Infrastructure Access Line Business of of Microsemi Storage Solutions, Inc. (formerly known as PMC-Sierra, Inc.) On April 28, 2016 , the Company entered into an asset purchase agreement with Microsemi Storage Solutions, Inc., formerly known as PMC-Sierra, Inc., or Microsemi, and consummated the transactions contemplated by the asset purchase agreement. The Company paid cash consideration of $21.0 million for the purchase of certain wireless access assets of Microsemi's wireless infrastructure access line business , and assumed certain liabilities. The assets acquired include, among other things, radio frequency and analog/mixed signal patents and other intellectual property, in-production and next-generation RF transceiver designs, a workforce-in-place, and other intangible assets, as well as tangible assets that include but are not limited to production masks and other production related assets, inventory, and other property, plant, and equipment. The liabilities assumed include, product warranty obligations, accrued vacation and severance obligations for employees of the wireless infrastructure access line business that were hired by the Company upon close of the acquisition. The acquired assets and assumed liabilities, together with the rehired employees, represent a business as defined in ASC 805, Business Combinations. The Company intends to integrate the acquired assets and rehired employees into the Company's existing business. The asset purchase agreement also contains customary representations, warranties and covenants, including non-competition, non-solicitation, and indemnification provisions. In connection with the acquisition, the Company entered into a transition services agreement with Microsemi for the purpose of Microsemi providing interim operations and general and administrative support to the Company. The following is a preliminary allocation of purchase price as of the April 28, 2016 closing date based upon an estimate of the fair value of the assets acquired and the liabilities assumed by the Company in the acquisition (in thousands): Description Amount (in thousands) Fair value of consideration transferred: Cash $ 21,000 Preliminary purchase price allocation: Inventory $ 912 Property and equipment 21 Identifiable intangible assets 13,600 Warranty obligations (12 ) Accrued expenses (456 ) Identifiable net assets acquired 14,065 Goodwill 6,935 Total purchase price $ 21,000 The estimated fair value of assets acquired and liabilities assumed performed for the purposes of these unaudited consolidated financial statements was primarily limited to the preliminary identification and valuation of intangible assets and inventory by independent valuation specialists. Estimates of fair value require management to make significant estimates and assumptions that are preliminary and subject to change upon finalization of the valuation analysis. Although final determination may result in different asset and liability fair values, it is not expected that such differences will be material to understanding the impact of the transaction on the financial results of MaxLinear. The goodwill recognized is attributable primarily to the acquired workforce, expected synergies, and other benefits that MaxLinear believes will result from integrating the operations of the wireless infrastructure access line business with the operations of MaxLinear. The Company has not yet made all of the remaining disclosures required by ASC 805-10-50-2, Business Combinations , as it is currently in the process of completing the purchase accounting for the acquisition. The Company used cash and cash equivalents on hand of $21.0 million to fund the acquisition. Acquisition and integration-related costs of $0.6 million related to the acquisition of the wireless infrastructure access line business were included in selling, general, and administrative expenses in the Company's statement of operations for the three months ended June 30, 2016 . The following table presents unaudited pro forma combined financial information for each of the periods presented, as if the acquisition had occurred at the beginning of fiscal year 2015: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (in thousands) Net revenues – proforma combined $ 102,530 $ 71,630 $ 207,648 $ 108,067 Net income (loss) – proforma combined 22,692 (34,117 ) 42,696 (43,862 ) The following adjustments were included in the unaudited pro forma combined net income (loss): Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (in thousands) Net income (loss) $ 22,584 $ (30,647 ) $ 43,265 $ (35,369 ) Add: Results of operations – acquired business 163 (2,566 ) 126 (5,764 ) Less: Proforma adjustments Depreciation of property, plant and equipment (1 ) (2 ) (3 ) (5 ) Amortization of intangible assets (203 ) (857 ) (809 ) (1,713 ) Amortization of inventory step-up — — — (336 ) Acquisition and integration expenses 569 — 569 (569 ) Tax provision (420 ) (45 ) (452 ) (106 ) Net income (loss) – proforma combined $ 22,692 $ (34,117 ) $ 42,696 $ (43,862 ) The pro forma combined financial information is presented for illustrative purposes only and is not necessarily indicative of the consolidated results of operations of the consolidated business had the merger actually occurred at the beginning of fiscal year 2015 or of the results of future operations of the consolidated business. The unaudited pro forma financial information does not reflect any operating efficiencies and cost saving that may be realized from the integration of the acquisition in the Company's unaudited consolidated statements of operations. For the three and six months ended June 30, 2016 , $0.8 million of revenue and $0.4 million of gross profit, excluding $0.5 million of amortization of acquired intangible assets and the inventory fair-value step-up of the wireless infrastructure access line business since the acquisition date are included in the Company's consolidated statements of operations. Acquisition of Entropic Communications, Inc. On April 30, 2015 , the Company completed its acquisition of Entropic Communications, Inc., or Entropic, for aggregate consideration of $289.4 million , which was comprised of the equity value of shares of the Company's common stock that were issued in the transaction of $173.8 million , the portion of outstanding equity awards deemed to have been earned as of April 30, 2015 of $4.5 million and cash of $111.1 million . Refer to Note 4 for disclosures following this acquisition for the three and six months ended June 30, 2016 and 2015 . Acquisition of Physpeed, Co., Ltd. On October 31, 2014 , the Company acquired 100% of the outstanding common shares of Physpeed Co., Ltd., or Physpeed, a privately held developer of high-speed physical layer interconnect products addressing enterprise and telecommunications infrastructure market applications. The Company paid $9.3 million in cash in exchange for all outstanding shares of capital stock and equity of Physpeed. Consideration payable of $1.1 million to the former shareholders of Physpeed was placed into escrow pursuant to the terms of the definitive merger agreement. The following disclosures regarding this acquisition are for the three and six months ended June 30, 2016 and 2015 . Compensation Arrangements In connection with the acquisition of Physpeed, the Company agreed to pay additional consideration in future periods. The definitive merger agreement provided for potential consideration of $1.7 million of held back merger proceeds for the former principal shareholders of Physpeed, which will be paid over a two year period contingent upon continued employment. Quarterly payments of $0.2 million began on January 31, 2015 and will end on October 31, 2016. Certain employees of Physpeed will be paid a total of $0.1 million of which $0.07 million was paid in 2015 and $0.05 million is being paid in 2016. These payments are accounted for as transactions separate from the business combination as the payments are contingent upon continued employment and are being recorded as post-combination compensation expense in the Company's financial statements during the service period. Earn-Out The definitive merger agreement also provides for potential earn-out consideration of up to $0.75 million to the former shareholders of Physpeed for the achievement of certain 2015 and 2016 revenue milestones. The contingent earn-out consideration had an estimated fair value of $0.3 million at the date of acquisition. The 2015 earn-out amount is determined by multiplying $0.375 million by a 2015 revenue percentage that is defined in the definitive merger agreement. The 2016 earn-out amount is determined by multiplying $0.375 million by a 2016 revenue percentage that is defined in the definitive merger agreement. Subsequent changes to the fair value are recorded through earnings. The fair value of the earn-out was $0.3 million and $0.4 million at June 30, 2016 and December 31, 2015 , respectively. During the six months ended June 30, 2016 , the Company paid $0.2 million for the 2015 earn-out (Note 6). Restricted Stock Units The Company agreed to grant restricted stock units, or RSUs, under its equity incentive plan to Physpeed continuing employees if certain 2015 and 2016 revenue targets are met contingent upon continued employment. Qualifying revenues are the net revenues recognized directly attributable to sales of Physpeed products or the Company’s provision of non-recurring engineering services exclusively with respect to the Physpeed products. The Company recorded compensation expense for the 2015 RSUs over a 14 month service period from October 31, 2014 through December 31, 2015. The Company records compensation expense for the 2016 RSUs over a 26 -month service period, which started from October 31, 2014 and runs through December 31, 2016. The Company has recorded an accrual for the stock-based compensation expense for the 2015 and 2016 RSUs of $1.3 million and $1.9 million at June 30, 2016 and December 31, 2015 , respectively. The Company issued the 2015 RSUs in February 2016 and no related accrual for the 2015 revenue period was outstanding at June 30, 2016 .

Restructuring Activity

Restructuring Activity	6 Months Ended
	Jun. 30, 2016
Restructuring and Related Activities [Abstract]
Restructuring Activity	Restructuring Activity In connection with the Company's acquisition of Entropic, the Company entered into a restructuring plan to address matters primarily relating to the integration of the Company and Entropic businesses. In connection with this plan, the Company has terminated the employment of 87 Entropic employees since the acquisition closing date. The Company did not incur any associated employee separation charges in the three and six months ended June 30, 2016 , as such terminations did not occur during such quarters. The Company recognized non-recurring employee separation charges of approximately $5.8 million in the three and six months ended June 30, 2015 related to these terminations. Additionally, in connection with the restructuring plan, the Company ceased use of the former Entropic headquarters in 2015. The Company recognized lease charges of $0 and $2.0 million in the three and six months ended June 30, 2016 , respectively, and $5.6 million in the three and six months ended June 30, 2015 , based on the adjustment to the net present value of the remaining lease obligation on the cease of use date as well as the execution of the final sublease. The Company believes all restructuring charges related to the Entropic acquisition have been incurred as of June 30, 2016 . The following table presents the activity related to the plan, which is included in restructuring charges in the Consolidated Statements of Operations: Three Months Ended June 30, Six Months Ended June 30, 2016 2016 2015 2016 2015 (in thousands) Employee separation expenses $ — $ 5,796 $ — $ 5,796 Lease related charges (1) — 5,593 1,976 5,593 Other — — 130 — $ — $ 11,389 $ 2,106 $ 11,389 ____________________________ (1) In the six months ended June 30, 2016, includes $0.4 million in offsets to restructuring charges related to an Entropic lease that was restructured prior to the completion of the acquisition by MaxLinear. The Company recorded an adjustment to the lease restructuring due to changes in market conditions. In the three months ended June 30, 2016, includes no offsets to restructuring charges related to Entropic leases. The following table presents a roll-forward of the Company's restructuring liability as of June 30, 2016 , which is included in accrued expenses and other current liabilities in the Consolidated Balance Sheets: Employee Separation Expenses Lease Related Charges Other Total (in thousands) Liability as of December 31, 2015 $ 75 $ 1,557 $ 1 $ 1,633 Restructuring charges (1) — 1,976 130 2,106 Cash payments (9 ) (2,376 ) (73 ) (2,458 ) Non-cash charges — 165 (19 ) 146 Liability as of June 30, 2016 $ 66 $ 1,322 $ 39 $ 1,427 ____________________________ (1) In the six months ended June 30, 2016, includes $0.4 million in offsets to restructuring charges related to an Entropic lease that was restructured during to the completion of the acquisition by MaxLinear. The Company recorded an adjustment to the lease restructuring due to changes in market conditions. In the three months ended June 30, 2016, includes no offsets to restructuring charges related to Entropic leases.

Goodwill and Intangible Assets

Goodwill and Intangible Assets Goodwill and Intangibles Assets (Notes)	6 Months Ended
	Jun. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill The changes in the carrying amount of goodwill were as follows: Carrying Value (in thousands) Balance as of January 1, 2016 $ 49,779 Acquisition of wireless infrastructure access line business 6,935 Balance as of June 30, 2016 $ 56,714 Goodwill is not amortized, but is tested for impairment using a two-step method on an annual basis and whenever events or changes in circumstances indicate that the carrying value may not be recoverable. The recoverability of goodwill is measured at the reporting unit level by comparing the reporting unit’s carrying amount, including goodwill, to the fair market value of the reporting unit. No goodwill impairment was recognized for three and six months ended June 30, 2016 and 2015. Acquired Intangibles Finite-lived Intangible Assets The following table sets forth the Company’s finite-lived intangible assets resulting from business acquisitions and technology licenses purchased, which continue to be amortized: June 30, 2016 December 31, 2015 Weighted Average Useful Life (in Years) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount (in thousands) Licensed technology 3 $ 3,311 $ (2,876 ) $ 435 $ 2,921 $ (2,725 ) $ 196 Developed technology 7 55,600 (8,214 ) 47,386 47,000 (4,652 ) 42,348 Trademarks and trade names 7 1,700 (283 ) 1,417 1,700 (162 ) 1,538 Customer relationships 5 7,800 (1,290 ) 6,510 4,700 (627 ) 4,073 Covenants non-compete 3 100 (6 ) 94 — — — Backlog 1 24,700 (24,367 ) 333 24,200 (24,200 ) — $ 93,211 $ (37,036 ) $ 56,175 $ 80,521 $ (32,366 ) $ 48,155 Amortization expense related to intangible assets was $2.6 million and $4.7 million in the three and six months ended June 30, 2016 , respectively, and $9.2 million and $9.4 million in the three and six months ended June 30, 2015 , respectively. The following table sets forth the activity during the six months ended June 30, 2016 related to finite-lived intangible assets resulting from the acquisition of the wireless access line business, other additions and amortization of acquired finite-lived intangible assets: Carrying Amount (in thousands) Balance as of December 31, 2015 $ 48,155 Acquisition of wireless infrastructure access line business 12,300 Other additions 390 Amortization (4,670 ) Balance as of June 30, 2016 $ 56,175 The following table presents future amortization of the Company’s finite-lived intangible assets at June 30, 2016 : Amortization (in thousands) 2016 (six months) $ 5,597 2017 10,485 2018 10,468 2019 9,159 2020 8,499 2021 8,122 Thereafter 3,845 Total $ 56,175 Indefinite-lived Intangible Assets The following table sets forth the activity of the Company’s indefinite-lived intangible assets, which consists of in-process research and development technology: Gross Carrying Amount (in thousands) Balance as of December 31, 2015 $ 3,200 Acquisition of wireless infrastructure access line business 1,300 Balance as of June 30, 2016 $ 4,500 The Company regularly reviews the carrying amount of its long-lived assets, as well as the useful lives, to determine whether indicators of impairment may exist which warrant adjustments to carrying values or estimated useful lives. An impairment loss would be recognized when the sum of the expected future undiscounted net cash flows is less than the carrying amount of the asset. Should impairment exist, the impairment loss would be measured based on the excess of the carrying amount of the asset over the asset’s fair value. No impairment losses related to long-lived assets were recognized for the three and six months ended June 30, 2016 and 2015.

Financial Instruments

Financial Instruments	6 Months Ended
	Jun. 30, 2016
Fair Value Disclosures [Abstract]
Financial Instruments	Financial Instruments The composition of financial instruments is as follows: June 30, 2016 Amortized Gross Unrealized Fair Gains Losses (in thousands) Assets Money market funds $ 10,311 $ — $ — $ 10,311 Government debt securities 2,000 — — 2,000 Corporate debt securities 26,889 10 — 26,899 39,200 10 — 39,210 Less amounts included in cash and cash equivalents (10,311 ) — — (10,311 ) $ 28,889 $ 10 $ — $ 28,899 Fair Value at June 30, 2016 (in thousands) Liabilities Contingent Consideration $ 265 Total $ 265 December 31, 2015 Amortized Gross Unrealized Fair Gains Losses (in thousands) Assets Money market funds $ 17,144 $ — $ — $ 17,144 Government debt securities 17,303 — (30 ) 17,273 Corporate debt securities 45,353 — (84 ) 45,269 79,800 — (114 ) 79,686 Less amounts included in cash and cash equivalents (17,144 ) — — (17,144 ) $ 62,656 $ — $ (114 ) $ 62,542 Fair Value at December 31, 2015 (in thousands) Liabilities Contingent Consideration $ 395 Total $ 395 At June 30, 2016 , the Company held 5 government and corporate debt securities with an aggregate fair value of $7.7 million that were in an unrealized loss position for less than 12 months . No securities have been in unrealized loss positions for greater than 12 months . Gross unrealized losses were immaterial at June 30, 2016 , and represented temporary impairments on government agency and corporate debt securities related to multiple issuers, and were primarily caused by fluctuations in U.S. interest rates. The Company evaluates securities for other-than-temporary impairment on a quarterly basis. Impairment is evaluated considering numerous factors, and their relative significance varies depending on the situation. Factors considered include the length of time and extent to which fair value has been less than the cost basis, the financial condition and near-term prospects of the issuer; including changes in the financial condition of the security’s underlying collateral; any downgrades of the security by a rating agency; nonpayment of scheduled interest, or the reduction or elimination of dividends; as well as our intent and ability to hold the security in order to allow for an anticipated recovery in fair value. All of the Company’s long-term available-for-sale securities were due between 1 and 2 years as of June 30, 2016 . The fair values of the Company’s financial instruments are the amounts that would be received in an asset sale or paid to transfer a liability in an orderly transaction between unaffiliated market participants and are recorded using a hierarchal disclosure framework based upon the level of subjectivity of the inputs used in measuring assets and liabilities. The levels are described below: Level 1: Quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities. Level 2: Observable prices that are based on inputs not quoted on active markets, but corroborated by market data. Level 3: Unobservable inputs are used when little or no market data is available. The Company classifies its financial instruments within Level 1 or Level 2 of the fair value hierarchy on the basis of valuations using quoted market prices or alternate pricing sources and models utilizing market observable inputs, respectively. The Company’s money market funds were valued based on quoted prices for the specific securities in an active market and were therefore classified as Level 1. The government and corporate debt securities have been valued on the basis of valuations provided by third-party pricing services, as derived from such services’ pricing models. The pricing services may use a consensus price which is a weighted average price based on multiple sources or mathematical calculations to determine the valuation for a security, and have been classified as Level 2. The Company reviews Level 2 inputs and fair value for reasonableness and the values may be further validated by comparison to independent pricing sources. In addition, the Company reviews third-party pricing provider models, key inputs and assumptions and understands the pricing processes at its third-party providers in determining the overall reasonableness of the fair value of its Level 2 financial instruments. As of June 30, 2016 , the Company has not made any adjustments to the prices obtained from its third party pricing providers. The contingent liability is classified as Level 3 as of June 30, 2016 and December 31, 2015 and is valued using an internal rate of return model. The assumptions used in preparing the internal rate of return model include estimates for future revenues related to Physpeed products and services and a discount factor of 0.45 at June 30, 2016 and 0.41 at December 31, 2015 . The assumptions used in preparing the internal rate of return model include estimates for outcome if milestone goals are achieved, the probability of achieving each outcome and discount rates. Significant changes in any of the unobservable inputs used in the fair value measurement of contingent consideration in isolation could result in a significantly lower or higher fair value. A change in estimated future revenues would be accompanied by a directionally similar change in fair value. The following table presents a summary of the Company’s financial instruments that are measured on a recurring basis: Fair Value Measurements at June 30, 2016 Balance at June 30, 2016 Quoted Prices Significant Significant (in thousands) Assets Money market funds $ 10,311 $ 10,311 $ — $ — Government debt securities 2,000 — 2,000 — Corporate debt securities 26,899 — 26,899 — $ 39,210 $ 10,311 $ 28,899 $ — Liabilities Contingent consideration $ 265 $ — $ — $ 265 $ 265 $ — $ — $ 265 Fair Value Measurements at December 31, 2015 Balance at December 31, 2015 Quoted Prices Significant Significant (in thousands) Assets Money market funds $ 17,144 $ 17,144 $ — $ — Government debt securities 17,273 — 17,273 — Corporate debt securities 45,269 — 45,269 — $ 79,686 $ 17,144 $ 62,542 $ — Liabilities Contingent consideration $ 395 $ — $ — $ 395 $ 395 $ — $ — $ 395 The following summarizes the activity in Level 3 financial instruments: Six Months Ended June 30, 2016 2016 2015 (in thousands) Contingent Consideration (1) Beginning balance $ 395 $ 265 Physpeed earn-out payment (240 ) — Loss (gain) recognized in earnings (2) 110 (132 ) Ending balance $ 265 $ 133 Net (loss) gain for the period included in earnings attributable to contingent consideration held at the end of the period $ (110 ) $ 132 ____________________________ (1) In connection with the acquisition of Physpeed, the Company recorded contingent consideration based upon the expected achievement of 2015 and 2016 revenue milestones. Changes to the fair value of contingent consideration due to changes in assumptions used in preparing the valuation model are recorded in selling, general and administrative expense in the unaudited consolidated statements of operations. (2) Changes to the estimated fair value of contingent consideration for the six months ended June 30, 2016 were primarily due to updates to present value discount factors. Changes to the estimated fair value of contingent consideration for the six months ended June 30, 2015 were primarily due to revisions to the Company's expectations of earn-out achievement. There were no transfers between Level 1, Level 2 or Level 3 financial instruments in

Balance Sheet Details

Balance Sheet Details	6 Months Ended
	Jun. 30, 2016
Balance Sheet Related Disclosures [Abstract]
Balance Sheet Details	Balance Sheet Details Cash and cash equivalents and investments consist of the following: June 30, 2016 December 31, 2015 (in thousands) Cash and cash equivalents $ 147,582 $ 67,956 Short-term investments 28,899 43,300 Long-term investments — 19,242 $ 176,481 $ 130,498 Inventory consists of the following: June 30, 2016 December 31, 2015 (in thousands) Work-in-process $ 14,276 $ 15,713 Finished goods 11,281 16,730 In-transit 47 — $ 25,604 $ 32,443 Property and equipment consist of the following: Useful Life June 30, 2016 December 31, 2015 (in thousands) Furniture and fixtures 5 $ 2,612 $ 2,458 Machinery and equipment 3 -5 25,047 23,679 Masks and production equipment 2 8,154 8,062 Software 3 3,036 3,017 Leasehold improvements 4 -5 11,268 9,573 Construction in progress N/A 700 62 50,817 46,851 Less accumulated depreciation and amortization (29,683 ) (24,993 ) $ 21,134 $ 21,858 Deferred revenue and deferred profit consist of the following: June 30, 2016 December 31, 2015 (in thousands) Deferred revenue—rebates $ 224 $ 118 Deferred revenue—distributor transactions 8,523 5,695 Deferred cost of net revenue—distributor transactions (2,949 ) (1,747 ) $ 5,798 $ 4,066 Accrued price protection liability consists of the following activity: Six Months Ended June 30, 2016 2015 (in thousands) Beginning balance $ 20,026 $ 10,018 Additional liability from acquisition — 3,486 Charged as a reduction of revenue 22,759 14,781 Reversal of unclaimed rebates (1,302 ) (63 ) Payments (23,213 ) (12,443 ) Ending balance $ 18,270 $ 15,779 Accrued expenses and other current liabilities consist of the following: June 30, 2016 December 31, 2015 (in thousands) Accrued technology license payments $ 3,000 $ 3,000 Accrued professional fees 1,372 1,196 Accrued restructuring 1,427 1,633 Accrued litigation costs — 534 Accrued royalty 1,170 2,042 Accrued leases - other 1,243 — Other 4,913 6,963 $ 13,125 $ 15,368

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation and Employee Benefit Plans	Stock-Based Compensation and Employee Benefit Plans Refer to the Company’s Annual Report for a summary of the stock-based compensation and equity plans. There have been no material changes to such plans during the six months ended June 30, 2016 . Stock-Based Compensation The Company uses the Black-Scholes valuation model to calculate the fair value of stock options and employee stock purchase rights granted to employees. The Company calculates the fair value of RSUs, and restricted stock awards, or RSAs, based on the fair market value of our Class A common stock on the grant date. The weighted-average grant date fair value per share of the RSUs and RSAs granted in the six months ended June 30, 2016 was $18.15 . The weighted-average grant date fair value per share of the RSUs and RSAs granted in the six months ended June 30, 2015 was $9.98 . No stock options were granted during the six months ended June 30, 2016 and 2015 . The Company recognized stock-based compensation in the consolidated statements of operations, based on the department to which the related employee reports, as follows: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (in thousands) (in thousands) Cost of net revenue $ 51 $ 61 $ 94 $ 96 Research and development 3,305 3,053 6,584 5,393 Selling, general and administrative 1,746 1,680 3,533 3,024 $ 5,102 $ 4,794 $ 10,211 $ 8,513 The total unrecognized compensation cost related to unvested stock options as of June 30, 2016 was $1.1 million , and the weighted average period over which these equity awards are expected to vest is 1.44 years. The total unrecognized compensation cost related to unvested RSUs and RSAs as of June 30, 2016 was $45.3 million , and the weighted average period over which these equity awards are expected to vest is 2.92 years. In connection with the acquisition of Entropic, the Company assumed stock options and RSUs originally granted by Entropic. Stock-based compensation expense related to assumed Entropic stock options and RSUs included $0.2 million in the three and six months ended June 30, 2016 , and $2.4 million in the three and six months ended June 30, 2015 . Employee Incentive Bonus In connection with the Company's bonus programs, in May 2016, we issued 0.2 million freely-tradable shares of our Class A common stock in settlement of bonus awards to employees, including executives, for the July 1, 2015 to December 31, 2015 performance period. In August 2015, we issued 0.3 million shares of our Class A common stock in settlement of bonus awards for the January 1, 2015 to June 30, 2015 performance period under our bonus plan. In May 2015, we issued 0.2 million freely-tradable shares of our Class A common stock in settlement of bonus awards for the fiscal 2014 performance period under our bonus plan. Restricted Stock Units and Restricted Stock Awards A summary of the Company’s restricted stock unit and restricted stock award activity is as follows: Number of Shares (in thousands) Weighted-Average Grant-Date Fair Value per Share Outstanding at December 31, 2015 3,642 $ 9.19 Granted 2,081 18.15 Vested (1,300 ) 10.32 Canceled (234 ) 10.87 Outstanding at June 30, 2016 4,189 13.20 The intrinsic value of restricted stock units and restricted stock awards vested was $15.7 million and $23.1 million in the three and six months ended June 30, 2016 , respectively, and $12.3 million and $15.2 million in the three and six months ended June 30, 2015, respectively. The intrinsic value of restricted stock units and restricted stock awards outstanding at June 30, 2016 was $75.3 million . Stock Options A summary of the Company’s stock options activity is as follows: Number of Shares (in thousands) Weighted-Average Exercise Price Weighted-Average Contractual Term (in years) Aggregate Intrinsic Value (in thousands) Outstanding at December 31, 2015 3,572 $ 6.83 Granted (1) — — Exercised (408 ) 5.18 Canceled (38 ) 24.32 Outstanding at June 30, 2016 3,126 $ 6.83 3.19 $ 35,481 Vested and expected to vest at June 30, 2016 3,115 $ 6.83 3.19 $ 35,367 Exercisable at June 30, 2016 2,808 $ 6.67 3.05 $ 32,376 ____________________________ (1) No options were granted during the six months ended June 30, 2016. The intrinsic value of stock options exercised was $3.2 million and $ 5.2 million in the three and six months ended June 30, 2016, respectively, and $1.1 million and $1.3 million in the three and six months ended June 30, 2015, respectively. Employee Stock Purchase Rights The fair values of employee stock purchase rights were estimated using the Black-Scholes option pricing model at their respective grant date using the following assumptions: Six Months Ended June 30, 2016 Weighted-average grant date fair value per share $5.02 - $7.44 Risk-free interest rate 0.33 - 0.38% Dividend yield — % Expected life (in years) 0.50 Volatility 59.14 - 83.71% The risk-free interest rate assumption was based on the United States Treasury’s rates for U.S. Treasury zero-coupon bonds with maturities similar to those of the expected term of the award being valued. The assumed dividend yield was based on the Company’s expectation of not paying dividends in the foreseeable future. The expected life is the duration of the offering period for each grant date, which occurs on a semi-annual basis. In addition, the estimated volatility incorporates the historical volatility of the Company's daily share closing price.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes In order to determine the quarterly provision for income taxes, the Company used an estimated annual effective tax rate, which is based on expected annual income and statutory tax rates in the various jurisdictions in which the Company operates. The provision for income taxes primarily relates to projected current federal and state income taxes and income taxes in certain foreign jurisdictions. Certain significant or unusual items are separately recognized in the quarter during which they occur and can be a source of variability in the effective tax rates from quarter to quarter. The Company utilizes the asset and liability method of accounting for income taxes. The Company records deferred tax assets to the extent it believes these assets will more likely than not be realized. In making such determination, the Company considers all available positive and negative evidence quarterly, including scheduled reversals of deferred tax liabilities, projected future taxable income, tax planning strategies, and recent financial performance. Based upon the Company's review of all positive and negative evidence, including its three year U.S. cumulative pre-tax book loss and taxable loss, the Company concluded that a full valuation allowance should continue to be recorded against its U.S. net deferred tax assets at June 30, 2016 . Additionally, the Company completed the acquisition of Entropic in the second quarter 2015. As a result of the acquisition, there was a valuation allowance release that resulted in a tax benefit of $1.8 million due to the purchase accounting adjustment for the net deferred tax liability. Furthermore, the Company does not incur expense or benefit in certain tax free jurisdictions in which it operates. The Company recorded a provision for income taxes of $0.1 million and $1.1 million in the three and six months ended June 30, 2016 , respectively, and a benefit from income taxes of $1.4 million and $1.2 million in the three and six months ended June 30, 2015 , respectively. The provision for income taxes in the three and six months ended June 30, 2016 primarily relates to federal alternative minimum tax due to the Company’s limitation on use of net operating losses, credit carryforwards, state income taxes, and income taxes in certain foreign jurisdictions. During the quarter ended June 30, 2016, the Company adopted ASU No. 2016-09, Improvements to Share-Based Compensation , which resulted in a reduction in the provision for income taxes of $3.5 million and $5.1 million in the consolidated statements of operations for the three and six months ended June 30, 2016 related to the inclusion of net excess tax benefits in the provision for income taxes (Note 1). The income tax benefit in the three and six months ended June 30, 2015 primarily relates to income taxes in certain foreign jurisdictions. During the six months ended June 30, 2016, the Company’s unrecognized tax benefits increased by $2.0 million . The Company expects decreases to its unrecognized tax benefits of $0.2 million within twelve months, due to the lapse of statutes of limitations. Accrued interest and penalties associated with uncertain tax positions as of June 30, 2016 were $0.2 million and $0.02 million , respectively. The Company is not currently under examination in any jurisdictions.

Significant Customer and Geogra

Significant Customer and Geographic Information	6 Months Ended
	Jun. 30, 2016
Risks and Uncertainties [Abstract]
Significant Customer and Geographic Information	Concentration of Credit Risk and Significant Customers Financial instruments, which potentially subject the Company to concentrations of credit risk, consist primarily of cash and cash equivalents and accounts receivable. The Company limits its exposure to credit loss by placing its cash with high credit quality financial institutions. At times, such deposits may be in excess of insured limits. The Company has not experienced any losses on its deposits of cash and cash equivalents. The Company markets its products and services to manufacturers of wired and wireless communications equipment throughout the world. The Company makes periodic evaluations of the credit worthiness of its customers and does not require collateral for credit sales. Customers greater than 10% of net revenues for each of the periods presented are as follows: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Percentage of total net revenue Arris (1) 29 % 30 % 26 % 29 % Technicolor (2) 10 % * 14 % * WNC Corporation * * 11 % * Cisco (2) N/A 16 % N/A 15 % * Represents less than 10% of the net revenue for the respective period. (1) In January 2016, Arris completed its acquisition of Pace. The revenue percentage attributed to Arris includes sales made to Pace in the three and six months ended June 30, 2016 . (2) In November 2015, Technicolor completed its purchase of Cisco’s connected devices business. Prior to Technicolor's purchase of Cisco, Cisco was a significant customer in the three and six months ended June 30, 2015 . Products shipped to international destinations representing greater than 10% of net revenue for each of the periods presented are as follows: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Percentage of total net revenue China 84 % 75 % 84 % 73 % The determination of which country a particular sale is allocated to is based on the destination of the product shipment. Balances greater than 10% of accounts receivable are as follows: June 30, December 31, 2016 2015 Percentage of gross accounts receivable WNC Corporation 12 % 16 % Pegatron Corporation 23 % 17 % Sernet Technologies Corporation 12 % 14 % MTI Jupiter Technologies * 13 % * Represents less than 10% of the gross accounts receivable for the respective period end.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Lease Commitments and Other Contractual Obligations The Company leases facilities and certain equipment under operating lease arrangements expiring at various years through fiscal 2022 . As of June 30, 2016 , future minimum payments under non-cancelable operating leases, other obligations, and inventory purchase obligations are as follows: Operating Leases Other Obligations Inventory Purchase Obligations Total (in thousands) 2016 (six months) $ 3,793 $ 3,638 $ 14,880 $ 22,311 2017 6,896 4,813 — 11,709 2018 6,144 891 — 7,035 2019 5,829 — — 5,829 2020 6,177 — — 6,177 Thereafter 7,666 — — 7,666 Total minimum payments $ 36,505 $ 9,342 $ 14,880 $ 60,727 On May 6, 2015 , the Company amended a lease arrangement with The Campus Carlsbad, LLC, so that the current Carlsbad office space of approximately 45,000 square feet expanded to include an additional 24,000 square feet of space. The original lease, which had a term of three years and seven months with an original expiration date of November 30, 2019 , was extended to an expiration date of June 30, 2022 . In 2015, the Company completed tenant improvement activities and expanded into this office space. The Company was provided a tenant improvement allowance of approximately $1,543,000 for tenant improvement costs and related fees and expenses. On November 11, 2015 , the Company entered into a real property lease with The Northwestern Mutual Life Insurance Company, a Wisconsin corporation, with respect to the lease of approximately 50,235 square feet of office and laboratory space located at 50 Parker in Irvine, California. The Company relocated its current operations in Irvine, California to the new facility in May 2016. The lease has an initial term of six years and two months, commencing on the later of (i) April 1, 2016 or (i) the date upon which certain building and tenant improvements have been substantially completed and possession of the substantially completed premises has been tendered by the landlord to the Company. The base monthly rent under the lease is approximately $68,000 per month during the first year of the initial lease term, increasing to approximately $86,000 per month during the last year of the initial lease term. The lease contains an option to extend the lease term for a single, five -year period. If the lease term is extended for the optional five -year period, the monthly base rent will be adjusted based on the fair market rental value. In addition to base rent, the Company has agreed to pay for a proportional share of the common area operating expenses and real property taxes. The lease includes customary provisions providing for late fees for unpaid rent, landlord access to the property, insurance obligations and events of default. In addition, this agreement includes tenant improvement incentives of $2.7 million . CrestaTech Litigation On January 21, 2014, CrestaTech Technology Corporation, or CrestaTech, filed a complaint for patent infringement against us in the United States District Court of Delaware, or the District Court Litigation. In its complaint, CrestaTech alleges that we infringe U.S. Patent Nos. 7,075,585, or the ’585 Patent, and 7,265,792. In addition to asking for compensatory damages, CrestaTech alleges willful infringement and seeks a permanent injunction. CrestaTech also names Sharp Corporation, Sharp Electronics Corp. and VIZIO, Inc. as defendants based upon their alleged use of our television tuners. On January 28, 2014, CrestaTech filed a complaint with the U.S. International Trade Commission, or ITC, again naming, among others, MaxLinear, Sharp, Sharp Electronics, and VIZIO, or the ITC Investigation. On May 16, 2014, the ITC granted CrestaTech’s motion to file an amended complaint adding six OEM Respondents, namely, SIO International, Inc., Hon Hai Precision Industry Co., Ltd., Wistron Corp., Wistron Infocomm Technology (America) Corp., Top Victory Investments Ltd. and TPV International (USA), Inc. MaxLinear, Sharp and VIZIO, which are collectively referred to with MaxLinear, Sharp and VIZIO as the Company Respondents. CrestaTech’s ITC complaint alleged a violation of 19 U.S.C. § 1337 through the importation into the United States, the sale for importation, or the sale within the United States after importation of the Company’s accused products that CrestaTech alleged infringe the same two patents asserted in the Delaware action. Through its ITC complaint, CrestaTech sought an exclusion order preventing entry into the United States of certain of the Company's television tuners and televisions containing such tuners from Sharp, Sharp Electronics, and VIZIO. CrestaTech also sought a cease and desist order prohibiting the Company Respondents from engaging in the importation into, sale for importation into, the sale after importation of, or otherwise transferring within the United States certain of the Company's television tuners or televisions containing such tuners. On March 10, 2014, the court stayed the District Court Litigation pending resolution of the ITC Investigation. On December 15, 2014, the ITC held a trial in the ITC Investigation. On February 27, 2015, the Administrative Law Judge issued a written Initial Determination, or ID, ruling that the Company Respondents do not violate Section 1337 in connection with CrestaTech’s asserted patents because CrestaTech failed to satisfy the economic prong of the domestic industry requirement pursuant to Section 1337(a)(2). In addition, the ID stated that certain of the Company's television tuners and televisions incorporating those tuners manufactured and sold by certain customers infringe three claims of the ‘585 Patent, and these three claims were not determined to be invalid. On April 30, 2015, the ITC issued a notice indicating that it intended to review portions of the ID finding no violation of Section 1337, including the ID’s findings of infringement with respect to, and validity of, the ‘585 Patent, and the ID’s finding that CrestaTech failed to establish the existence of a domestic industry within the meaning of Section 1337. The ITC has subsequently issued its opinion, which terminated its investigation. The opinion affirmed the findings of the administrative law judge that no violation of Section 1337 had occurred because CrestaTech had failed to establish the economic prong of the domestic industry requirement. The ITC also affirmed the administrative law judge's finding of infringement with respect to the three claims of the '585 Patent that were not held to be invalid. On November 30, 2015, CrestaTech filed an appeal of the ITC decision with the United States Court of Appeals for the Federal Circuit, or the Federal Circuit. On March 7, 2016, CrestaTech voluntarily dismissed its appeal resulting in final resolution of the ITC Investigation in our favor. In addition, the Company has filed four petitions for inter partes review, or IPR, by the US Patent Office, two for each of the CrestaTech patents asserted against the Company. The Patent Trial and Appeal Board, or the PTAB, did not institute two of these IPRs as being redundant to IPRs filed by another party that are already underway for the same CrestaTech patent. The remaining two petitions were instituted or instituted-in-part and, together with the IPRs filed by third parties, there are currently six IPR proceedings filed involving the two CrestaTech patents asserted against the Company. In October 2015, the PTAB issued final decisions in two of the six IPR proceedings (one for each of the two asserted patents), holding that all of the reviewed claims are unpatentable. Included in these decisions was one of the three claims of the ‘585 Patent mentioned above in connection with the ITC’s final decision. CrestaTech appealed the PTAB’s decisions at the Federal Circuit. The parties recently completed briefing in this appeal and the case is set to proceed to oral argument. The remaining two claims of the ‘585 Patent are included in at least one of the four IPR proceedings instituted and currently pending before the PTAB. Oral argument was held in these four proceedings on June 1, 2016 and June 2, 2016. Final Written Decisions from the PTAB are expected in the upcoming weeks. On March 18, 2016, CrestaTech filed a petition for Chapter 7 bankruptcy in the Northern District of California. As a result of this proceeding, all rights in the CrestaTech asserted patents, including the right to control the pending litigation, were assigned to CF Crespe LLC ("CF Crespe"). CF Crespe is now the named party in the pending IPRs, the Federal Circuit appeal and District Court Litigation. CF Crespe has not sought to lift the stay in the District Court Litigation given the resolution of the ITC investigation. The Company cannot predict the outcome of any appeal by CrestaTech, the District Court Litigation, or the IPRs. Any adverse determination in the District Court Litigation could have a material adverse effect on the Company's business and operating results. Trango Systems, Inc. Litigation On August 2, 2016, Trango Systems, Inc., or Trango, filed a complaint in the Superior Court of California, County of San Diego, Central Division (Case No. 37-2016-00026197-CU-BC-CTL) against Broadcom Corporation and the Company alleging fraud, negligent misrepresentation, breach of contract, intentional interference with economic relations, negligent interference with economic relations, intentional interference with prospective economic relations, negligent interference with prospective economic relations, unlawful and unfair business acts and practices, and aiding and abetting. The case relates to a chipset the Company acquired in connection with the Company's recent acquisition of certain assets from Broadcom Corporation (Note 12). The case was only recently filed and is in the preliminary stages. The plaintiff seeks general and special damages, pre-judgment interest, expenses and costs, statutory penalties, attorney’s fees, punitive damages, and injunctive relief. Other Matters In addition, from time to time, we are subject to threats of litigation or actual litigation in the ordinary course of business, some of which may be material. Other than the CrestaTech and Trango litigation described above, management believes that there are no other currently pending litigation matters that, if determined adversely by the Company, would have a material effect on the Company's business or that would not be covered by the Company's existing liability insurance.

Subsequent Event Subsequent Eve

Subsequent Event Subsequent Event (Notes)	6 Months Ended
	Jun. 30, 2016
Subsequent Events [Abstract]
Subsequent Events [Text Block]	12. Subsequent Events Acquisition of Certain Assets and Assumption of Certain Liabilities of the Wireless Infrastructure Backhaul Business of Broadcom Corporation On July 1, 2016 , the Company completed its previously announced acquisition of certain assets and assumption of certain liabilities of the wireless infrastructure backhaul business of Broadcom Corporation (which recently merged with Avago Technologies Limited), or Broadcom, for aggregate cash consideration of $80.0 million . The assets acquired include, among other things, certain patents and other intellectual property, certain designs, a workforce-in-place, and other intangible assets, as well as tangible assets that include but are not limited to production masks and other production related assets, inventory, and other property and equipment. The liabilities assumed include, among other things, product warranty obligations and accrued severance obligations for employees of the wireless infrastructure access line business that were hired by the Company upon close of the acquisition. The assets and liabilities to be acquired, together with the rehired employees, represent a business as defined in ASC 805, Business Combinations.

Organization and Summary of S20

Organization and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	MaxLinear, Inc. was incorporated in Delaware in September 2003. MaxLinear, Inc., together with its wholly owned subsidiaries, collectively referred to as MaxLinear, or the Company, is a provider of radio-frequency and mixed-signal integrated circuits for cable and satellite broadband communications and the connected home, and for data center, metro, and long-haul transport network applications and wireless infrastructure. MaxLinear's customers include module makers, original equipment manufacturers, or OEMs, and original design manufacturers, or ODMs, who incorporate the Company’s products in a wide range of electronic devices including Pay-TV operator set-top boxes, DOCSIS data and voice gateways, hybrid analog and digital televisions and consumer terrestrial set-top boxes, Direct Broadcast Satellite outdoor units, optical modules for data center, metro, and long-haul transport network applications, and RF transceivers and modem solutions for wireless carrier infrastructure applications. The Company is a fabless semiconductor company focusing its resources on the design, sale and marketing of its products.
Basis of Presentation and Principles of Consolidation	The accompanying unaudited consolidated financial statements include the accounts of MaxLinear, Inc. and its wholly owned subsidiaries and have been prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP, for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and disclosures required by GAAP for complete financial statements. All intercompany transactions and investments have been eliminated in consolidation. In the opinion of management, the Company’s unaudited consolidated interim financial statements contain adjustments, including normal recurring accruals necessary to present fairly the Company’s consolidated financial position, results of operations, comprehensive income (loss) and cash flows. The consolidated balance sheet as of December 31, 2015 was derived from the Company’s audited consolidated financial statements at that date. The accompanying unaudited consolidated interim financial statements should be read in conjunction with the audited consolidated financial statements and related notes thereto for the year ended December 31, 2015 included in the Company’s Annual Report on Form 10-K filed by the Company with the Securities and Exchange Commission, or the SEC, on February 17, 2016, as amended by Amendment No. 1 filed with the SEC on April 28, 2016 , or the Annual Report. Certain prior period amounts have been reclassified to conform with the current period presentation. Interim results for the three and six months ended June 30, 2016 are not necessarily indicative of the results that may be expected for the fiscal year ending December 31, 2016 .
Use of Estimates	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the unaudited consolidated financial statements and accompanying notes to unaudited consolidated financial statements. Actual results could differ from those estimates.
Significant Accounting Policies [Text Block]	Refer to the Company’s Annual Report for a summary of significant accounting policies. There have been no material changes to our significant accounting policies during the six months ended June 30, 2016 , other than the adoption of ASU No. 2016-09, Improvements to Share-Based Compensation during the three months ended June 30, 2016, as discussed under Recent Accounting Pronouncements below.
New Accounting Pronouncements, Policy [Policy Text Block]	In May 2014, the Financial Accounting Standards Board, or FASB, issued new accounting guidance related to revenue recognition. This new standard will replace all current U.S. GAAP guidance on this topic and eliminate all industry-specific guidance. The new revenue recognition standard provides a unified model to determine when and how revenue is recognized. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration for which the entity expects to be entitled in exchange for those goods or services. This guidance will be effective for the Company beginning in the first quarter of fiscal year 2018 and can be applied either retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption. The Company is currently evaluating the impact of adopting this new accounting standard on its consolidated financial position and results of operations. In July 2015, the FASB issued ASU 2015-11, Simplifying the Measurement of Inventory, which requires inventory to be subsequently measured using the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. The amendments in this Update are effective for the Company beginning in the first quarter of fiscal 2017 and should be applied prospectively. The Company is currently evaluating the impact that this guidance will have on the Company's consolidated financial position and results of operations. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). The amendments in this Update require a lessee to recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term for all leases with terms greater than twelve months. For leases less than twelve months, an entity is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term. The amendments in this Update are effective for the Company for fiscal years beginning with fiscal year 2019, including interim periods within those years, with early adoption permitted. The Company is currently in the process of evaluating the impact of adoption of the amendments in this Update on the Company’s consolidated financial position and results of operations; however, adoption of the amendments in this Update are expected to be material for most entities who have material leases greater than twelve months. In March 2016, the FASB issued ASU No. 2016-08, Principal versus Agent Considerations (Reporting Revenue Gross versus Net ) to clarify the revenue recognition implementation guidance on principal versus agent considerations. The amendments in this Update clarify that when another party is involved in providing goods or services to a customer, an entity that is the principal has obtained control of a good or service before it is transferred to a customer, and provides indicators to assist an entity in determining whether it controls a specified good or service prior to the transfer to the customer. An entity that is the principal recognizes revenue in the gross amount of consideration to which it expects to be entitled in exchange for the specified good or service transferred to the customer, whereas an agent recognizes revenue in the amount of any fee or commission to which it expects to be entitled in exchange for arranging for the specified good or service to be provided by the other party. The amendments in this Update are effective for the Company beginning in the first quarter of fiscal year 2018, concurrent with the new revenue recognition standard. The Company is currently evaluating the impact of adopting the new revenue recognition accounting standard, including this Update, on its consolidated financial position and results of operations. In March 2016, the FASB issued ASU No. 2016-09, Improvements to Share-Based Compensation to simplify certain aspects of accounting for share-based payment transactions associated with income taxes, classification as equity or liabilities, and classification on the statement of cash flows. The amendments in this Update are effective for the Company for fiscal years beginning with fiscal year 2017, including interim periods within those years, with early adoption permitted. Early adoption, if elected, must be completed for all of the amendments in the same period. The new guidance requires, among other things, excess tax benefits and tax deficiencies to be recorded in the income statement in the provision for income taxes when awards vest or are settled. Also, because excess tax benefits are no longer recognized in additional paid-in capital, the assumed proceeds from applying the treasury stock method when computing earnings per share is amended to exclude the amount of excess tax benefits that would be recognized in additional paid-in capital. The Company adopted ASU No. 2016-09 during the quarter ended June 30, 2016. The impact of adoption was to reduce the provision for income taxes and increase net income for the three and six months ended June 30, 2016 by $3.5 million and $5.1 million , respectively, and increase basic net income per share by $0.06 and $0.08 for the three and six months ended June 30, 2016 and increase diluted net income per share by $0.04 and $0.06 for the three and six months ended June 30, 2016 (Note 2).

Goodwill and Intangible Asset21

Goodwill and Intangible Assets Goodwill and Intangibles Assets (Policies)	6 Months Ended
	Jun. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]	Goodwill is not amortized, but is tested for impairment using a two-step method on an annual basis and whenever events or changes in circumstances indicate that the carrying value may not be recoverable. The recoverability of goodwill is measured at the reporting unit level by comparing the reporting unit’s carrying amount, including goodwill, to the fair market value of the reporting unit.
Goodwill and Intangible Assets, Policy [Policy Text Block]	The Company regularly reviews the carrying amount of its long-lived assets, as well as the useful lives, to determine whether indicators of impairment may exist which warrant adjustments to carrying values or estimated useful lives. An impairment loss would be recognized when the sum of the expected future undiscounted net cash flows is less than the carrying amount of the asset. Should impairment exist, the impairment loss would be measured based on the excess of the carrying amount of the asset over the asset’s fair value.

Organization and Summary of S22

Organization and Summary of Significant Accounting Policies Organization and Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2016
Accounting Changes and Error Corrections [Abstract]
New Accounting Pronouncement, Early Adoption [Table Text Block]	The impact of adoption on the Company's previously reported results for the three months ended March 31, 2016 are as follows: Three months ended March 31, 2016 As reported As adjusted (in thousands, except per share amounts) Provision for income taxes $ 2,558 $ 993 Net income $ 19,116 $ 20,681 Basic earnings per share $ 0.31 $ 0.33 Diluted earnings per share $ 0.29 $ 0.31 Diluted weighted average shares outstanding 65,818 66,643

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	6 Months Ended
	Jun. 30, 2016
Earnings Per Share [Abstract]
Summary of Basic and Diluted Earnings Per Share	The Company computes basic earnings per share by dividing net income (loss) by the weighted average number of shares of Class A and Class B common stock outstanding during the period. For diluted earnings per share, the Company divides net income (loss) by the sum of the weighted average number of shares of Class A and Class B common stock outstanding and the potential number of shares of dilutive Class A and Class B common stock outstanding during the period. Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (in thousands, except per share amounts) Numerator: Net income (loss) $ 22,584 $ (30,647 ) $ 43,265 $ (35,369 ) Denominator: Weighted average common shares outstanding—basic 63,470 52,586 63,056 45,367 Dilutive common stock equivalents 4,050 — 4,054 — Weighted average common shares outstanding—diluted 67,520 52,586 67,110 45,367 Net income (loss) per share: Basic $ 0.36 $ (0.58 ) $ 0.69 $ (0.78 ) Diluted $ 0.33 $ (0.58 ) $ 0.64 $ (0.78 )

Business Combinations Busines24

Business Combinations Business Combinations (Tables)	6 Months Ended
	Jun. 30, 2016
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	The following is a preliminary allocation of purchase price as of the April 28, 2016 closing date based upon an estimate of the fair value of the assets acquired and the liabilities assumed by the Company in the acquisition (in thousands): Description Amount (in thousands) Fair value of consideration transferred: Cash $ 21,000 Preliminary purchase price allocation: Inventory $ 912 Property and equipment 21 Identifiable intangible assets 13,600 Warranty obligations (12 ) Accrued expenses (456 ) Identifiable net assets acquired 14,065 Goodwill 6,935 Total purchase price $ 21,000
Business Acquisition, Pro Forma Information [Table Text Block]	The following table presents unaudited pro forma combined financial information for each of the periods presented, as if the acquisition had occurred at the beginning of fiscal year 2015: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (in thousands) Net revenues – proforma combined $ 102,530 $ 71,630 $ 207,648 $ 108,067 Net income (loss) – proforma combined 22,692 (34,117 ) 42,696 (43,862 ) The following adjustments were included in the unaudited pro forma combined net income (loss): Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (in thousands) Net income (loss) $ 22,584 $ (30,647 ) $ 43,265 $ (35,369 ) Add: Results of operations – acquired business 163 (2,566 ) 126 (5,764 ) Less: Proforma adjustments Depreciation of property, plant and equipment (1 ) (2 ) (3 ) (5 ) Amortization of intangible assets (203 ) (857 ) (809 ) (1,713 ) Amortization of inventory step-up — — — (336 ) Acquisition and integration expenses 569 — 569 (569 ) Tax provision (420 ) (45 ) (452 ) (106 ) Net income (loss) – proforma combined $ 22,692 $ (34,117 ) $ 42,696 $ (43,862 )

Restructuring Activity Restruct

Restructuring Activity Restructuring Activity (Tables)	6 Months Ended
	Jun. 30, 2016
Restructuring and Related Activities [Abstract]
Restructuring and Related Costs [Table Text Block]	The following table presents the activity related to the plan, which is included in restructuring charges in the Consolidated Statements of Operations: Three Months Ended June 30, Six Months Ended June 30, 2016 2016 2015 2016 2015 (in thousands) Employee separation expenses $ — $ 5,796 $ — $ 5,796 Lease related charges (1) — 5,593 1,976 5,593 Other — — 130 — $ — $ 11,389 $ 2,106 $ 11,389
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table presents a roll-forward of the Company's restructuring liability as of June 30, 2016 , which is included in accrued expenses and other current liabilities in the Consolidated Balance Sheets: Employee Separation Expenses Lease Related Charges Other Total (in thousands) Liability as of December 31, 2015 $ 75 $ 1,557 $ 1 $ 1,633 Restructuring charges (1) — 1,976 130 2,106 Cash payments (9 ) (2,376 ) (73 ) (2,458 ) Non-cash charges — 165 (19 ) 146 Liability as of June 30, 2016 $ 66 $ 1,322 $ 39 $ 1,427 ____________________________

Goodwill and Intangible Asset26

Goodwill and Intangible Assets Goodwill and Intangibles Assets (Tables)	6 Months Ended
	Jun. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill [Table Text Block]	The changes in the carrying amount of goodwill were as follows: Carrying Value (in thousands) Balance as of January 1, 2016 $ 49,779 Acquisition of wireless infrastructure access line business 6,935 Balance as of June 30, 2016 $ 56,714
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]	The following table sets forth the Company’s finite-lived intangible assets resulting from business acquisitions and technology licenses purchased, which continue to be amortized: June 30, 2016 December 31, 2015 Weighted Average Useful Life (in Years) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount (in thousands) Licensed technology 3 $ 3,311 $ (2,876 ) $ 435 $ 2,921 $ (2,725 ) $ 196 Developed technology 7 55,600 (8,214 ) 47,386 47,000 (4,652 ) 42,348 Trademarks and trade names 7 1,700 (283 ) 1,417 1,700 (162 ) 1,538 Customer relationships 5 7,800 (1,290 ) 6,510 4,700 (627 ) 4,073 Covenants non-compete 3 100 (6 ) 94 — — — Backlog 1 24,700 (24,367 ) 333 24,200 (24,200 ) — $ 93,211 $ (37,036 ) $ 56,175 $ 80,521 $ (32,366 ) $ 48,155
Schedule of Finite-Lived Intangible Assets [Table Text Block]	The following table sets forth the activity during the six months ended June 30, 2016 related to finite-lived intangible assets resulting from the acquisition of the wireless access line business, other additions and amortization of acquired finite-lived intangible assets: Carrying Amount (in thousands) Balance as of December 31, 2015 $ 48,155 Acquisition of wireless infrastructure access line business 12,300 Other additions 390 Amortization (4,670 ) Balance as of June 30, 2016 $ 56,175
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	The following table presents future amortization of the Company’s finite-lived intangible assets at June 30, 2016 : Amortization (in thousands) 2016 (six months) $ 5,597 2017 10,485 2018 10,468 2019 9,159 2020 8,499 2021 8,122 Thereafter 3,845 Total $ 56,175
Schedule of Indefinite-Lived Intangible Assets [Table Text Block]	The following table sets forth the activity of the Company’s indefinite-lived intangible assets, which consists of in-process research and development technology: Gross Carrying Amount (in thousands) Balance as of December 31, 2015 $ 3,200 Acquisition of wireless infrastructure access line business 1,300 Balance as of June 30, 2016 $ 4,500

Financial Instruments Financial

Financial Instruments Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2016
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	The following table presents a summary of the Company’s financial instruments that are measured on a recurring basis: Fair Value Measurements at June 30, 2016 Balance at June 30, 2016 Quoted Prices Significant Significant (in thousands) Assets Money market funds $ 10,311 $ 10,311 $ — $ — Government debt securities 2,000 — 2,000 — Corporate debt securities 26,899 — 26,899 — $ 39,210 $ 10,311 $ 28,899 $ — Liabilities Contingent consideration $ 265 $ — $ — $ 265 $ 265 $ — $ — $ 265 Fair Value Measurements at December 31, 2015 Balance at December 31, 2015 Quoted Prices Significant Significant (in thousands) Assets Money market funds $ 17,144 $ 17,144 $ — $ — Government debt securities 17,273 — 17,273 — Corporate debt securities 45,269 — 45,269 — $ 79,686 $ 17,144 $ 62,542 $ — Liabilities Contingent consideration $ 395 $ — $ — $ 395 $ 395 $ — $ — $ 395
Available-for-sale Securities [Table Text Block]	The composition of financial instruments is as follows: June 30, 2016 Amortized Gross Unrealized Fair Gains Losses (in thousands) Assets Money market funds $ 10,311 $ — $ — $ 10,311 Government debt securities 2,000 — — 2,000 Corporate debt securities 26,889 10 — 26,899 39,200 10 — 39,210 Less amounts included in cash and cash equivalents (10,311 ) — — (10,311 ) $ 28,889 $ 10 $ — $ 28,899 Fair Value at June 30, 2016 (in thousands) Liabilities Contingent Consideration $ 265 Total $ 265 December 31, 2015 Amortized Gross Unrealized Fair Gains Losses (in thousands) Assets Money market funds $ 17,144 $ — $ — $ 17,144 Government debt securities 17,303 — (30 ) 17,273 Corporate debt securities 45,353 — (84 ) 45,269 79,800 — (114 ) 79,686 Less amounts included in cash and cash equivalents (17,144 ) — — (17,144 ) $ 62,656 $ — $ (114 ) $ 62,542 Fair Value at December 31, 2015 (in thousands) Liabilities Contingent Consideration $ 395 Total $ 395
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	The following summarizes the activity in Level 3 financial instruments: Six Months Ended June 30, 2016 2016 2015 (in thousands) Contingent Consideration (1) Beginning balance $ 395 $ 265 Physpeed earn-out payment (240 ) — Loss (gain) recognized in earnings (2) 110 (132 ) Ending balance $ 265 $ 133 Net (loss) gain for the period included in earnings attributable to contingent consideration held at the end of the period $ (110 ) $ 132 ____________________________

Balance Sheet Details (Tables)

Balance Sheet Details (Tables)	6 Months Ended
	Jun. 30, 2016
Balance Sheet Related Disclosures [Abstract]
Cash, Cash Equivalents and Investments	Cash and cash equivalents and investments consist of the following: June 30, 2016 December 31, 2015 (in thousands) Cash and cash equivalents $ 147,582 $ 67,956 Short-term investments 28,899 43,300 Long-term investments — 19,242 $ 176,481 $ 130,498
Inventory	Inventory consists of the following: June 30, 2016 December 31, 2015 (in thousands) Work-in-process $ 14,276 $ 15,713 Finished goods 11,281 16,730 In-transit 47 — $ 25,604 $ 32,443
Property and Equipment	Property and equipment consist of the following: Useful Life June 30, 2016 December 31, 2015 (in thousands) Furniture and fixtures 5 $ 2,612 $ 2,458 Machinery and equipment 3 -5 25,047 23,679 Masks and production equipment 2 8,154 8,062 Software 3 3,036 3,017 Leasehold improvements 4 -5 11,268 9,573 Construction in progress N/A 700 62 50,817 46,851 Less accumulated depreciation and amortization (29,683 ) (24,993 ) $ 21,134 $ 21,858
Deferred Revenue and Deferred Profit	Deferred revenue and deferred profit consist of the following: June 30, 2016 December 31, 2015 (in thousands) Deferred revenue—rebates $ 224 $ 118 Deferred revenue—distributor transactions 8,523 5,695 Deferred cost of net revenue—distributor transactions (2,949 ) (1,747 ) $ 5,798 $ 4,066
Price Protection Liability	Accrued price protection liability consists of the following activity: Six Months Ended June 30, 2016 2015 (in thousands) Beginning balance $ 20,026 $ 10,018 Additional liability from acquisition — 3,486 Charged as a reduction of revenue 22,759 14,781 Reversal of unclaimed rebates (1,302 ) (63 ) Payments (23,213 ) (12,443 ) Ending balance $ 18,270 $ 15,779
Accrued Expenses	Accrued expenses and other current liabilities consist of the following: June 30, 2016 December 31, 2015 (in thousands) Accrued technology license payments $ 3,000 $ 3,000 Accrued professional fees 1,372 1,196 Accrued restructuring 1,427 1,633 Accrued litigation costs — 534 Accrued royalty 1,170 2,042 Accrued leases - other 1,243 — Other 4,913 6,963 $ 13,125 $ 15,368

Stock-Based Compensation and Em

Stock-Based Compensation and Employee Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	The Company recognized stock-based compensation in the consolidated statements of operations, based on the department to which the related employee reports, as follows: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (in thousands) (in thousands) Cost of net revenue $ 51 $ 61 $ 94 $ 96 Research and development 3,305 3,053 6,584 5,393 Selling, general and administrative 1,746 1,680 3,533 3,024 $ 5,102 $ 4,794 $ 10,211 $ 8,513
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]	A summary of the Company’s restricted stock unit and restricted stock award activity is as follows: Number of Shares (in thousands) Weighted-Average Grant-Date Fair Value per Share Outstanding at December 31, 2015 3,642 $ 9.19 Granted 2,081 18.15 Vested (1,300 ) 10.32 Canceled (234 ) 10.87 Outstanding at June 30, 2016 4,189 13.20
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	A summary of the Company’s stock options activity is as follows: Number of Shares (in thousands) Weighted-Average Exercise Price Weighted-Average Contractual Term (in years) Aggregate Intrinsic Value (in thousands) Outstanding at December 31, 2015 3,572 $ 6.83 Granted (1) — — Exercised (408 ) 5.18 Canceled (38 ) 24.32 Outstanding at June 30, 2016 3,126 $ 6.83 3.19 $ 35,481 Vested and expected to vest at June 30, 2016 3,115 $ 6.83 3.19 $ 35,367 Exercisable at June 30, 2016 2,808 $ 6.67 3.05 $ 32,376 ____________________________
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]	The fair values of employee stock purchase rights were estimated using the Black-Scholes option pricing model at their respective grant date using the following assumptions: Six Months Ended June 30, 2016 Weighted-average grant date fair value per share $5.02 - $7.44 Risk-free interest rate 0.33 - 0.38% Dividend yield — % Expected life (in years) 0.50 Volatility 59.14 - 83.71%

Significant Customer and Geog30

Significant Customer and Geographic Information Significant Customer and Geographic Information (Tables)	6 Months Ended
	Jun. 30, 2016
Risks and Uncertainties [Abstract]
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]	Customers greater than 10% of net revenues for each of the periods presented are as follows: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Percentage of total net revenue Arris (1) 29 % 30 % 26 % 29 % Technicolor (2) 10 % * 14 % * WNC Corporation * * 11 % * Cisco (2) N/A 16 % N/A 15 % * Represents less than 10% of the net revenue for the respective period. (1) In January 2016, Arris completed its acquisition of Pace. The revenue percentage attributed to Arris includes sales made to Pace in the three and six months ended June 30, 2016 . (2) In November 2015, Technicolor completed its purchase of Cisco’s connected devices business. Prior to Technicolor's purchase of Cisco, Cisco was a significant customer in the three and six months ended June 30, 2015 . Products shipped to international destinations representing greater than 10% of net revenue for each of the periods presented are as follows: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Percentage of total net revenue China 84 % 75 % 84 % 73 % The determination of which country a particular sale is allocated to is based on the destination of the product shipment. Balances greater than 10% of accounts receivable are as follows: June 30, December 31, 2016 2015 Percentage of gross accounts receivable WNC Corporation 12 % 16 % Pegatron Corporation 23 % 17 % Sernet Technologies Corporation 12 % 14 % MTI Jupiter Technologies * 13 % * Represents less than 10% of the gross accounts receivable for the respective period end.

Commitments and Contingencies C

Commitments and Contingencies Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Future Minimum Payments Under Operating Leases	As of June 30, 2016 , future minimum payments under non-cancelable operating leases, other obligations, and inventory purchase obligations are as follows: Operating Leases Other Obligations Inventory Purchase Obligations Total (in thousands) 2016 (six months) $ 3,793 $ 3,638 $ 14,880 $ 22,311 2017 6,896 4,813 — 11,709 2018 6,144 891 — 7,035 2019 5,829 — — 5,829 2020 6,177 — — 6,177 Thereafter 7,666 — — 7,666 Total minimum payments $ 36,505 $ 9,342 $ 14,880 $ 60,727
Future Minimum Payments Under Other Obligations	As of June 30, 2016 , future minimum payments under non-cancelable operating leases, other obligations, and inventory purchase obligations are as follows: Operating Leases Other Obligations Inventory Purchase Obligations Total (in thousands) 2016 (six months) $ 3,793 $ 3,638 $ 14,880 $ 22,311 2017 6,896 4,813 — 11,709 2018 6,144 891 — 7,035 2019 5,829 — — 5,829 2020 6,177 — — 6,177 Thereafter 7,666 — — 7,666 Total minimum payments $ 36,505 $ 9,342 $ 14,880 $ 60,727
Future Minimum Payments Under Inventory Purchase Obligations	As of June 30, 2016 , future minimum payments under non-cancelable operating leases, other obligations, and inventory purchase obligations are as follows: Operating Leases Other Obligations Inventory Purchase Obligations Total (in thousands) 2016 (six months) $ 3,793 $ 3,638 $ 14,880 $ 22,311 2017 6,896 4,813 — 11,709 2018 6,144 891 — 7,035 2019 5,829 — — 5,829 2020 6,177 — — 6,177 Thereafter 7,666 — — 7,666 Total minimum payments $ 36,505 $ 9,342 $ 14,880 $ 60,727

Organization and Summary of S32

Organization and Summary of Significant Accounting Policies Organization and Summary of Significant Accounting Policies (Details 1) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Provision for income taxes	$ 78		$ (1,384)	$ 1,071	$ (1,180)
Net income	$ 22,584		$ (30,647)	$ 43,265	$ (35,369)
Basic earnings per share	$ 0.36		$ (0.58)	$ 0.69	$ (0.78)
Diluted earnings per share	$ 0.33		$ (0.58)	$ 0.64	$ (0.78)
Diluted weighted average shares outstanding	67,520		52,586	67,110	45,367
Scenario, Previously Reported [Member]
Provision for income taxes		$ 2,558
Net income		$ 19,116
Basic earnings per share		$ 0.31
Diluted earnings per share		$ 0.29
Diluted weighted average shares outstanding		65,818
Early Adoption Accounting Principle, Prior Period Restated [Member]
Provision for income taxes		$ 993
Net income		$ 20,681
Basic earnings per share		$ 0.33
Diluted earnings per share		$ 0.31
Diluted weighted average shares outstanding		66,643

Organization and Summary of S33

Organization and Summary of Significant Accounting Policies (Details Textuals) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Tax Adjustments, Settlements, and Unusual Provisions	$ 3,500,000	$ 5,100,000
New Accounting Pronouncement Impact to Basic Earnings-per-share	$ 0.06	$ 0.08
New Accounting Pronouncement Impact to Diluted Earnings-per-share	$ 0.04	$ 0.06
New accounting pronouncement impact to retained earnings			$ 0

Net Income (Loss) Per Share (De

Net Income (Loss) Per Share (Details 1) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Numerator:
Net income (loss)	$ 22,584	$ (30,647)	$ 43,265	$ (35,369)
Denominator:
Weighted average common shares outstanding-basic (shares)	63,470	52,586	63,056	45,367
Dilutive common stock equivalents (shares)	4,050	0	4,054	0
Weighted average common shares outstanding-diluted (shares)	67,520	52,586	67,110	45,367
Net income (loss) per share:
Basic	$ 0.36	$ (0.58)	$ 0.69	$ (0.78)
Diluted	$ 0.33	$ (0.58)	$ 0.64	$ (0.78)

Net Income (Loss) Per Share (35

Net Income (Loss) Per Share (Details Textuals) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016USD ($)shares$ / shares	Jun. 30, 2015shares	Jun. 30, 2016USD ($)classshares$ / shares	Jun. 30, 2015shares
Earnings Per Share [Abstract]
Tax Adjustments, Settlements, and Unusual Provisions | $	$ 3.5		$ 5.1
New Accounting Pronouncement Impact, Incremental Dilutive Share Increase	910,000		868,000
New Accounting Pronouncement Impact to Diluted Earnings-per-share | $ / shares	$ 0.04		$ 0.06
Number Of Class Of Stock Outstanding | class			2
Common stock equivalents excluded from the calculation of net loss per share (shares)	1,200,000	4,300,000	700,000	5,700,000

Business Combinations Busines36

Business Combinations Business Combinations (Details 1) - USD ($) $ in Thousands	Jun. 30, 2016	Apr. 28, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Goodwill	$ 56,714		$ 49,779
Wireless Infrastructure Access Line Business of of Microsemi Storage Solutions, Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents		$ 21,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory		912
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		21
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		13,600
Business Combination, Liabilities Assumed, Warranty Obligations		12
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other		456
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net		14,065
Goodwill		6,935
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		$ 21,000

Business Combinations Busines37

Business Combinations Business Combinations (Details 2) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Pro forma reconciliation [Abstract]
Net income (loss)	$ 22,584	$ (30,647)	$ 43,265	$ (35,369)
Wireless Infrastructure Access Line Business of of Microsemi Storage Solutions, Inc. [Member]
Business Acquisition, Pro Forma Information [Abstract]
Business Acquisition, Pro Forma Revenue	102,530	71,630	207,648	108,067
Business Acquisition, Pro Forma Net Income (Loss)	22,692	(34,117)	42,696	(43,862)
Pro forma reconciliation [Abstract]
Business Acquisition, Proforma Adjustment for Acquiree Results of Operations	163	(2,566)	126	(5,764)
Business Acquisition Proforma Depreciation of Property, Plant and Equipment	(1)	2	(3)	5
Business Acquisition Proforma Amortization of Intangible Assets	(203)	857	(809)	(1,713)
Business Acquisition, Proforma, Cost of Goods Sold, Amortization	0	0	0	336
Business Acquisition Proforma, Acquisition Related Costs	569	0	569	569
Business Acquisition, Proforma Acquisitions, Tax Provision	(420)	45	(452)	106
Business Acquisitions Pro Forma Combined Net Income (Loss)	$ 22,692	$ (34,117)	$ 42,696	$ (43,862)

Business Combinations Busines38

Business Combinations Business Combinations (Details Textuals) - USD ($) $ in Thousands	Jul. 01, 2016	Apr. 28, 2016	Apr. 30, 2015	Oct. 31, 2014	Jun. 30, 2016	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2016	Mar. 31, 2015
Wireless Infrastructure Access Line Business of of Microsemi Storage Solutions, Inc. [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition		Apr. 28, 2016
Business Combination, Consideration Transferred		$ 21,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual					$ 759
Business Combination, Pro Forma Information, Gross Profit					373
Business Combination Pro Forma Information Amortization of Inventory Step Up included in Consolidated Income Statement					541
Wireless Infrastructure Backhaul Business of Broadcom Corporation [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	Jul. 1, 2016
Business Combination, Consideration Transferred	$ 80,000
Restructuring Costs					569	$ 569
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual					759
Business Combination, Pro Forma Information, Gross Profit					373
Business Combination Pro Forma Information Amortization of Inventory Step Up included in Consolidated Income Statement					541
Entropic Communications [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition			Apr. 30, 2015
Business Combination, Consideration Transferred			$ 289,400
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable			173,800
Business Combination, Consideration Transferred, Liabilities Incurred			4,500
Payments to Acquire Businesses, Gross			$ 111,100
Physpeed [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition						Oct. 31, 2014
Payments to Acquire Businesses, Gross				$ 9,250
Physpeed Acquisition Related [Abstract]
Business Acquisition, Percentage of Voting Interests Acquired				100.00%
Escrow Deposit				$ 1,100
Continued Employment [Member] | Physpeed [Member]
Physpeed Acquisition Related [Abstract]
Business Combination, Contingent Consideration, Liability				1,700
Business Combination, Additional Consideration, Quarterly Installments				200
Business Combination, Separately Recognized Transactions, Expenses and Losses Recognized				100		$ 50		$ 70
Earn-out Consideration [Member] | Physpeed [Member]
Physpeed Acquisition Related [Abstract]
Business Combination, Contingent Consideration, Liability				300	265	265				$ 133
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High				$ 750
Payment of Contingent Consideration						240	$ 0
Scenario, Forecast [Member] | Earn-out Consideration [Member] | Physpeed [Member]
Physpeed Acquisition Related [Abstract]
Business Combination, Contingent Consideration Arrangements, Base Amount Multiplied by Revenue Percent									$ 375
Contingent Consideration [Member] | Fair Value, Measurements, Recurring [Member]
Physpeed Acquisition Related [Abstract]
Business Combination, Contingent Consideration, Liability, Noncurrent					265	265
Physpeed, 2015 Restricted Stock Unit Plan [Member] | Physpeed [Member]
Physpeed Acquisition Related [Abstract]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition				14 months
Physpeed, 2016 Restricted Stock Unit Plan [Member] | Physpeed [Member]
Physpeed Acquisition Related [Abstract]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition				26 months
Restricted Stock Units (RSUs) [Member] | Physpeed [Member]
Physpeed Acquisition Related [Abstract]
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Liabilities, Accrued Compensation					$ 1,300	$ 1,300		$ 1,900

Restructuring Activity Restru39

Restructuring Activity Restructuring Activity (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	$ 11,389	$ 2,106	$ 11,389
One-time Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	5,796	0	5,796
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	5,593	1,976	5,593
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	$ 0	$ 130	$ 0

Restructuring Activity Restru40

Restructuring Activity Restructuring Activity (Details 2) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 1,427		$ 1,427		$ 1,633
Restructuring Charges	0	$ 11,389	2,106	$ 11,389
Payments for Restructuring			(2,458)
Restructuring Reserve, Accrual Adjustment			146
One-time Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	66		66		75
Restructuring Charges	0	5,796	0	5,796
Payments for Restructuring			(9)
Restructuring Reserve, Accrual Adjustment			0
Lease Related Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	1,322		1,322		1,557
Restructuring Charges			1,976
Payments for Restructuring			(2,376)
Restructuring Reserve, Accrual Adjustment			165
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	39		39		$ 1
Restructuring Charges	$ 0	$ 0	130	$ 0
Payments for Restructuring			(73)
Restructuring Reserve, Accrual Adjustment			$ (19)

Restructuring Activity Restru41

Restructuring Activity Restructuring Activities (Details Textuals) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016USD ($)	Jun. 30, 2015USD ($)	Jun. 30, 2016USD ($)	Jun. 30, 2015USD ($)	Dec. 31, 2015employee
Restructuring charges	$ 0	$ 11,389	$ 2,106	$ 11,389
Facility Closing [Member]
Restructuring charges	$ 0	$ 5,593	1,976	$ 5,593
Restructuring Plan, Entropic Communications [Member]
Number of employees terminated | employee					87
Restructuring Plan, Entropic Communications [Member] | Facility Closing [Member]
Restructuring Reserve, Translation and Other Adjustment			$ 400

Goodwill and Intangible Asset42

Goodwill and Intangible Assets Goodwill and Intangibles Assets (Details 1) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Apr. 28, 2016	Dec. 31, 2015
Goodwill [Line Items]
Goodwill	$ 56,714		$ 49,779
Wireless Infrastructure Access Line Business of of Microsemi Storage Solutions, Inc. [Member]
Goodwill [Line Items]
Goodwill		$ 6,935
Goodwill, Acquired During Period	$ 6,935

Goodwill and Intangible Asset43

Goodwill and Intangible Assets Goodwill and Intangibles Assets (Details 2) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 93,211	$ 80,521
Accumulated Amortization	(37,036)	(32,366)
Net Carrying Amount	$ 56,175	48,155
Licensed technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in Years)	3 years
Gross Carrying Amount	$ 3,311	2,921
Accumulated Amortization	(2,876)	(2,725)
Net Carrying Amount	$ 435	196
Developed technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in Years)	7 years
Gross Carrying Amount	$ 55,600	47,000
Accumulated Amortization	(8,214)	(4,652)
Net Carrying Amount	$ 47,386	42,348
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in Years)	7 years
Gross Carrying Amount	$ 1,700	1,700
Accumulated Amortization	(283)	(162)
Net Carrying Amount	$ 1,417	1,538
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in Years)	5 years
Gross Carrying Amount	$ 7,800	4,700
Accumulated Amortization	(1,290)	(627)
Net Carrying Amount	$ 6,510	4,073
Covenants non-compete
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in Years)	3 years
Gross Carrying Amount	$ 100	0
Accumulated Amortization	(6)	0
Net Carrying Amount	$ 94	0
Backlog
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in Years)	1 year
Gross Carrying Amount	$ 24,700	24,200
Accumulated Amortization	(24,367)	(24,200)
Net Carrying Amount	$ 333	$ 0

Goodwill and Intangible Asset44

Goodwill and Intangible Assets Goodwill and Intangibles Assets (Details 3) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Assets, Net	$ 56,175	$ 48,155
Acquisition of wireless infrastructure access line business	12,300
Other additions	390
Amortization	$ 4,670

Goodwill and Intangible Asset45

Goodwill and Intangible Assets Goodwill and Intangibles Assets (Details 4) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
2016 (six months)	$ 5,597
2,017	10,485
2,018	10,468
2,019	9,159
2,020	8,499
2,021	8,122
Thereafter	3,845
Net Carrying Amount	$ 56,175	$ 48,155

Goodwill and Intangible Asset46

Goodwill and Intangible Assets Goodwill and Intangibles Assets (Details 5) - Indefinite-lived Intangible Assets [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets	$ 4,500	$ 3,200
Acquisition of wireless infrastructure access line business	$ 1,300

Goodwill and Intangible Asset47

Goodwill and Intangible Assets Goodwill and Intangibles Assets (Details Textuals) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	$ 1,100,000		$ 1,100,000
Amortization			4,670,000
Goodwill, Impairment Loss			$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term			1 year 5 months 10 days
Allocated Share-based Compensation Expense	5,102,000	$ 4,794,000	$ 10,211,000	$ 8,513,000
Assets, Total [Member]
Amortization	$ 2,600,000	$ 9,200,000	4,700,000	$ 9,400,000
Finite-Lived Intangible Assets [Member]
Transfers into developed technology from IPR&D			0
Indefinite-lived Intangible Assets [Member]
Impairment of Intangible Assets (Excluding Goodwill)			0
Indefinite-lived Intangible Assets [Member] | Indefinite-lived Intangible Assets [Member]
Transfers into developed technology from IPR&D			$ 0

Financial Instruments Financi48

Financial Instruments Financial Instruments (Details 1) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 39,200	$ 79,800
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	10	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	114
Available-for-sale Securities	39,210	79,686
Cash and Cash Equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	10,311	17,144
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Available-for-sale Securities	10,311	17,144
Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	28,889	62,656
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	10	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	114
Available-for-sale Securities	28,899	62,542
US Government Agencies Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	2,000	17,303
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	30
Available-for-sale Securities	2,000	17,273
Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	26,889	45,353
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	10	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	84
Available-for-sale Securities	26,899	45,269
Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	10,311	17,144
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Available-for-sale Securities	10,311	17,144
Fair Value, Measurements, Recurring [Member] | Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability, Noncurrent	265
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability, Noncurrent	265	395
Available-for-sale Securities	39,210	79,686
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability, Noncurrent	265	395
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	$ 10,311	$ 17,144

Financial Instruments Financi49

Financial Instruments Financial Instruments (Details 2) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 39,200	$ 79,800
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	10	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	(114)
Available-for-sale Securities	39,210	79,686
Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	10,311	17,144
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Available-for-sale Securities	10,311	17,144
Fair Value, Measurements, Recurring [Member] | Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability, Noncurrent	265
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	10,311	17,144
Business Combination, Contingent Consideration, Liability, Noncurrent	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability, Noncurrent	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | US Government Agencies Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	10,311	17,144
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	28,899	62,542
Business Combination, Contingent Consideration, Liability, Noncurrent	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability, Noncurrent	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | US Government Agencies Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	2,000	17,273
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	26,899	45,269
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	0
Business Combination, Contingent Consideration, Liability, Noncurrent	265	395
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability, Noncurrent	265	395
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | US Government Agencies Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	39,210	79,686
Business Combination, Contingent Consideration, Liability, Noncurrent	265	395
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Contingent Consideration [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability, Noncurrent	265	395
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | US Government Agencies Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	2,000	17,273
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	26,899	45,269
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	10,311	17,144
Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	26,889	45,353
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	10	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	(84)
Available-for-sale Securities	26,899	45,269
US Government Agencies Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	2,000	17,303
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	(30)
Available-for-sale Securities	2,000	17,273
Cash and Cash Equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	10,311	17,144
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Available-for-sale Securities	10,311	17,144
Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Amortized Cost Basis	28,889	62,656
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	10	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	(114)
Available-for-sale Securities	$ 28,899	$ 62,542

Financial Instruments Financi50

Financial Instruments Financial Instruments (Details 3) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015	Mar. 31, 2015	Oct. 31, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net Gain (Loss) Attributable To Contingent Consideration	$ (110)	$ 132
Fair Value, Inputs, Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Discount Rate	45.00%		41.00%
Physpeed [Member] | Earn-out Consideration [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Payment of Contingent Consideration	$ 240	0
Business Combination, Contingent Consideration, Liability	265			$ 133	$ 300
Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member] | Contingent Consideration [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value	395	265	$ 265
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings	$ 110	$ (132)
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value			$ 395

Financial Instruments Financi51

Financial Instruments Financial Instruments - Additional Information (Details Textuals)	6 Months Ended	12 Months Ended
	Jun. 30, 2016USD ($)debt_security	Mar. 31, 2016	Dec. 31, 2015USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | debt_security	5
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 7,700,000
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount			$ 0
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	$ 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net			$ 0
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available For Sale Securities Non Current Maturity Period	1 year
Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Period Of Unrealized Loss Position		12 months
Available For Sale Securities Non Current Maturity Period	2 years
Maximum [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	45.00%		41.00%

Balance Sheet Details - Cash an

Balance Sheet Details - Cash and Investments (Details 1) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Balance Sheet Related Disclosures [Abstract]
Cash and cash equivalents	$ 147,582	$ 67,956	$ 56,731	$ 20,696
Short-term investments, available-for-sale	28,899	43,300
Long-term investments, available-for-sale	0	19,242
Investments and Cash	$ 176,481	$ 130,498

Balance Sheet Details - Invento

Balance Sheet Details - Inventory (Details 2) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Balance Sheet Related Disclosures [Abstract]
Work-in-process	$ 14,276	$ 15,713
Finished goods	11,281	16,730
In-transit	47	0
Inventory Total	$ 25,604	$ 32,443

Balance Sheet Details - Propert

Balance Sheet Details - Property and Equipment (Details 3) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 50,817	$ 46,851
Less accumulated depreciation and amortization	(29,683)	(24,993)
Property and equipment, net	$ 21,134	21,858
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Useful life	5 years
Property and equipment, Gross	$ 2,612	2,458
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 25,047	23,679
Machinery and equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life	3 years
Machinery and equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life	5 years
Masks and production equipment [Member]
Property, Plant and Equipment [Line Items]
Useful life	2 years
Property and equipment, Gross	$ 8,154	8,062
Software [Member]
Property, Plant and Equipment [Line Items]
Useful life	3 years
Property and equipment, Gross	$ 3,036	3,017
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 11,268	9,573
Leasehold improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life	4 years
Leasehold improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life	5 years
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 700	$ 62

Balance Sheet Details - Deferre

Balance Sheet Details - Deferred Revenue and Deferred Profit (Details 4) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Balance Sheet Related Disclosures [Abstract]
Deferred revenue-rebates	$ 224	$ 118
Deferred revenue - distributor transactions	8,523	5,695
Deferred cost of net revenue - distributor transactions	(2,949)	(1,747)
Deferred revenue and deferred profit	$ 5,798	$ 4,066

Balance Sheet Details- Accrued

Balance Sheet Details- Accrued Price Protection Liability (Details 5) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Accrued Price Protection Rebate Activity [Roll Forward]
Begining Balance	$ 20,026	$ 10,018
Additional liability from acquisition	0	3,486
Charged as a reduction of revenue	22,759	14,781
Reversal of unclaimed rebates	(1,302)	(63)
Payments	(23,213)	(12,443)
Ending Balance	$ 18,270	$ 15,779

Balance Sheet Details - Accrued

Balance Sheet Details - Accrued Expenses (Details 6) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Balance Sheet Related Disclosures [Abstract]
Accrued technology license payments	$ 3,000	$ 3,000
Accrued professional fees	1,372	1,196
Accrued restructuring	1,427	1,633
Accrued litigation costs	0	534
Accrued royalty	1,170	2,042
Accrued Rent, Current	1,243	0
Other	4,913	6,963
Total	$ 13,125	$ 15,368

Stock-Based Compensation and 58

Stock-Based Compensation and Employee Benefit Plans - Expense by Type (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 5,102	$ 4,794	$ 10,211	$ 8,513
Cost of Sales [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	51	61	94	96
Research and Development Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	3,305	3,053	6,584	5,393
Selling, General and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 1,746	$ 1,680	$ 3,533	$ 3,024

Stock-Based Compensation and 59

Stock-Based Compensation and Employee Benefit Plans - Awards (Details 2) - Restricted Stock Unit and Restricted Stock Award [Member] - $ / shares shares in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number	4,189		3,642
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	2,081
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	1,300
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	234
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 13.20		$ 9.19
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	18.15	$ 9.98
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Intrinsic Value, Amount Per Share	10.32
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Intrinsic Value	$ 10.87

Stock-Based Compensation Stock-

Stock-Based Compensation Stock-Based Compensation and Employee Benefit Plans - Stock Options (Details 3) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	1 year 5 months 10 days
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	3,126	3,572
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	408
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Number of Shares	38
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable [Table Text Block]	3,115
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options	2,808
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price	$ 6.83	$ 6.83
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	0
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	5.18
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price	24.32
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price	6.83
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price	$ 6.67
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	3 years 2 months 9 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 35,481
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	3 years 2 months 9 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value	$ 35,367
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Remaining Contractual Term	3 years 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	$ 32,376

Stock-Based Compensation Stoc61

Stock-Based Compensation Stock-Based Compensation and Employee Benefit Plans - ESPP (Details 4) - Employee Stock [Member]	6 Months Ended
	Jun. 30, 2016$ / shares
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	6 months
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 5.02
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	0.33%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	59.14%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 7.44
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	0.38%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	83.71%

Stock-Based Compensation and 62

Stock-Based Compensation and Employee Benefit Plans - Additional Information (Details Textuals) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	May 13, 2016	Aug. 20, 2015	May 14, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	$ 1,100		$ 1,100
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term			1 year 5 months 10 days
Allocated Share-based Compensation Expense	5,102	$ 4,794	$ 10,211	$ 8,513
Shares Issued upon Settlement of Employee Bonus Plan					0.2	0.3	0.2
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding	15,700	12,300	23,100	15,200
Share Based Compensation Arrangement By Share Based Payment Award Other Than Options Outstanding Intrinsic Value	75,300		75,300
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	3,200	1,100	$ 5,200	$ 1,300
Restricted Stock Unit and Restricted Stock Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 18.15	$ 9.98
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term			2 years 11 months 2 days
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	45,300		$ 45,300
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value			$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term			3 years 2 months 9 days
Employee Stock Option [Member] | Entropic Communications Stock Compensation [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 238	$ 2,400	$ 283	$ 2,400

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Taxes [Abstract]
Valuation Allowance, Deferred Tax Asset, Release due to Acquisition, amount			$ 1,800
Provision for income taxes (income tax benefit)	$ 78	$ (1,384)	1,071	$ (1,180)
Tax Adjustments, Settlements, and Unusual Provisions	3,500		5,100
Unrecognized Tax Benefits, Period Increase (Decrease)			2,000
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Other Information			200
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	200		200
Unrecognized Tax Benefits, Income Tax Penalties Accrued	$ 20		$ 20

Significant Customer and Geog64

Significant Customer and Geographic Information Significant Customer and Geographic Information (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Net Revenue [Member] | Customer Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk percentage				15.00%
Net Revenue [Member] | Customer Concentration Risk [Member] | Arris Corporation [Member]
Concentration Risk [Line Items]
Concentration risk percentage	29.00%	30.00%	26.00%	29.00%
Net Revenue [Member] | Customer Concentration Risk [Member] | Technicolor [Member]
Concentration Risk [Line Items]
Concentration risk percentage	10.00%		14.00%
Net Revenue [Member] | Customer Concentration Risk [Member] | WNC Corporation
Concentration Risk [Line Items]
Concentration risk percentage			11.00%
Net Revenue [Member] | Customer Concentration Risk [Member] | Cisco
Concentration Risk [Line Items]
Concentration risk percentage		16.00%
Net Revenue [Member] | Geographic Concentration Risk [Member] | China [Member]
Concentration Risk [Line Items]
Concentration risk percentage	84.00%	75.00%	84.00%	73.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | WNC Corporation
Concentration Risk [Line Items]
Concentration risk percentage			12.00%		16.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Petragon Corporation [Member]
Concentration Risk [Line Items]
Concentration risk percentage			23.00%		17.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Sernet Technologies Corporation
Concentration Risk [Line Items]
Concentration risk percentage			12.00%		14.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | MTI Jupiter Technologies
Concentration Risk [Line Items]
Concentration risk percentage					13.00%

Commitments and Contingencies65

Commitments and Contingencies Commitments and Contingencies (Details 1) $ in Thousands	Jun. 30, 2016USD ($)
Long-term Purchase Commitment [Line Items]
Contractual Obligation	$ 60,727
Operating Leases
2016 (six months)	3,793
2,017	6,896
2,018	6,144
2,019	5,829
2,020	6,177
Thereafter	7,666
Total minimum payments:	36,505
Other Obligations
2016 (six months)	3,638
2,017	4,813
2,018	891
2,019	0
2,020	0
Thereafter	0
Total minimum payments:	9,342
Contractual Obligation, Due in Second Year	11,709
Contractual Obligation, Due in Third Year	7,035
Contractual Obligation, Due in Fourth Year	5,829
Contractual Obligation, Due in Fifth Year	6,177
Contractual Obligation, Due after Fifth Year	7,666
Contractual Obligation, Future Minimum Payments Due, Remainder of Fiscal Year	22,311
Inventories [Member]
Long-term Purchase Commitment [Line Items]
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	14,880
Recorded Unconditional Purchase Obligation Due in Second Year	0
Recorded Unconditional Purchase Obligation Due in Third Year	0
Recorded Unconditional Purchase Obligation Due in Fourth Year	0
Recorded Unconditional Purchase Obligation Due in Fifth Year	0
Recorded Unconditional Purchase Obligation Due after Fifth Year	0
Recorded Unconditional Purchase Obligation	$ 14,880

Commitments and Contingencies66

Commitments and Contingencies Commitments and Contingencies - Leases (Details 2)	Nov. 11, 2015	Dec. 17, 2013	Jun. 30, 2016USD ($)ft²
The Campus Carlsbad, LLC [Member]
Date Amended Carlsbad Lease			May 6, 2015
Operating Lease, Area of Property | ft²			45,000
Operating Lease, Additional Square Footage | ft²			24,000
Lease Expiration, original			Nov. 30, 2019
Lease Expiration Date			Jun. 30, 2022
Lease Incentive for Leasehold Improvements			$ 1,543,000
Lessee Leasing Arrangements, Operating Leases, Term of Contract		3 years 7 months
Northwest Mutual Life Insurance Company [Member]
Operating Lease, Area of Property | ft²			50,235
Lease Incentive for Leasehold Improvements			$ 2,700,000
Date of Irvine Lease at Parker			Nov. 11, 2015
Operating Leases, Rent Expense, Minimum Rentals			$ 68,000
Operating Leases, Rent Expense, Minimum Rentals, Escalated			$ 86,000
Lessee Leasing Arrangements, Operating Leases, Renewal Term			5 years
Lessee Leasing Arrangements, Operating Leases, Term of Contract	6 years 2 months

Commitments and Contingencies67

Commitments and Contingencies Commitments and Contingencies - Litigation (Details 3)	May 16, 2014claim	Oct. 31, 2015claimpatent	Jun. 30, 2016claim
CrestaTech Technology Corporation v. MaxLinear, Inc. [Member]
Loss Contingencies [Line Items]
Loss Contingency, Allegations		3
Patents found not infringed upon | patent		2
Inter Partes Review by US Patent Office [Member]
Loss Contingencies [Line Items]
New claims filed	4
Inter Partes Review by US Patent Office v. CrestaTech Patents [Member]
Loss Contingencies [Line Items]
Number of pending claims		6
Trango Systems, Inc. v. Broadcom Corporation [Member]
Loss Contingencies [Line Items]
New claims filed			1

Subsequent Event Subsequent E68

Subsequent Event Subsequent Events (Details) - Wireless Infrastructure Backhaul Business of Broadcom Corporation [Member] $ in Millions	Jul. 01, 2016USD ($)
Subsequent Event [Line Items]
Business Acquisition, Effective Date of Acquisition	Jul. 1, 2016
Business Combination, Consideration Transferred	$ 80