Quarterly report pursuant to Section 13 or 15(d)

Business Combinations (Details)

v3.20.2
Business Combinations (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Business Acquisition [Line Items]                    
Goodwill $ 302,576           $ 302,576   $ 238,330 $ 238,330
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Fair Value Mark Up On Inventory 32,900           32,900      
Business Combination, Amortization of Inventory Step-Up $ 14,445     $ 0     14,445 $ (32,945)    
Finite-lived Intangible Assets Acquired             81,100 0    
Indefinite-lived Intangible Assets Acquired             $ 7,200 0    
Business Acquisition, Share Price $ 21.24           $ 21.24      
Business Acquisition, Pro Forma Revenue $ 219,419     181,438     $ 508,449 541,067    
Business Acquisition, Pro Forma Net Income (Loss) $ (17,324)     $ (23,470)     $ (103,108) $ (126,340)    
Business Acquisition, Pro Forma Earnings Per Share, Basic $ (0.20)     $ (0.33)     $ (1.37) $ (1.77)    
Business Acquisition, Pro Forma Earnings Per Share, Diluted $ (0.20)     $ (0.33)     $ (1.37) $ (1.77)    
Weighted Average Basic Shares Outstanding, Pro Forma 74,023,000     72,170,000     73,472,000 71,557,000    
Diluted (shares) 74,023,000     72,170,000     73,472,000 71,557,000    
Net revenue $ 156,633     $ 80,020     $ 283,880 $ 247,162    
Business Acquisition, Revenue Reported by Acquired Entity for Last Annual Period 62,786     101,418     224,569 293,905    
Net income (loss) (36,645) $ (21,807) $ (15,469) (4,714) $ (2,229) $ (4,851) (73,921) (11,794)    
Business Acquisition Proforma, Earnings of Acquiree (3,875)     (22,075)     (63,882) (75,994)    
Business Acquisition Proforma Depreciation of Property, Plant and Equipment 2,101     934     4,358 948    
Business Acquisition Proforma Amortization of Intangible Assets 1,615     3,923     10,119 11,369    
Business Combination, Transaction Costs 7,471     0     12,803 (12,803)    
Business Acquisition Pro-Forma Interest Expense (571)     (2,120)     (6,202) (6,488)    
Business Acquisition Pro Forma Other Expenses 82     324     1,867 2,287    
Business Acquisition Proforma Acquisitions Tax Provision 762     258     14 (920)    
Business Combination ProForma Nonrecurring Adjustment             34,500      
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual 82,500           82,500      
Business Combination, Pro Forma Information, Gross Profit of Acquiree since Acquisition Date, Actual 41,800           41,800      
Business Combination ProForma Nonrecurring Adjustment, Actual 15,800           15,800      
Business Combination, Acquisition Related Costs 7,500           12,800      
Order or Production Backlog                    
Business Acquisition [Line Items]                    
Business Acquisition Proforma Amortization of Intangible Assets 400           1,600      
Inventory step-up [Member]                    
Business Acquisition [Line Items]                    
Business Combination, Amortization of Inventory Step-Up             32,900      
Nonrecurring Adjustment [Member]                    
Business Acquisition [Line Items]                    
Business Acquisition, Pro Forma Net Income (Loss) (14,615)     $ (23,470)     (100,399) $ (126,340)    
Term A                    
Business Acquisition [Line Items]                    
Long-term Debt, Gross 175,000           175,000   $ 0  
WiFi and Broadband assets business [Member]                    
Business Acquisition [Line Items]                    
Business Combination, Consideration Transferred             150,000      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory 67,100           67,100      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment 17,641           17,641      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities 68           68      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other 7,916           7,916      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other 8,197           8,197      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net 126,560           126,560      
Goodwill 23,440           23,440      
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net 150,000           150,000      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill 58,000           $ 58,000      
Business Combination, Separately Recognized Transactions, Description             25.0 million      
Finite-lived Intangible Assets Acquired             $ 50,800      
WiFi and Broadband assets business [Member] | In Process Research and Development [Member]                    
Business Acquisition [Line Items]                    
Indefinite-lived Intangible Assets Acquired             $ 7,200      
WiFi and Broadband assets business [Member] | Developed technology                    
Business Acquisition [Line Items]                    
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life             7 years      
WiFi and Broadband assets business [Member] | Customer-Related Intangible Assets                    
Business Acquisition [Line Items]                    
Finite-lived Intangible Assets Acquired             $ 6,800      
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life             5 years      
WiFi and Broadband assets business [Member] | Order or Production Backlog                    
Business Acquisition [Line Items]                    
Finite-lived Intangible Assets Acquired             $ 800      
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life             6 months 29 days      
WiFi and Broadband assets business [Member] | Technology-Based Intangible Assets                    
Business Acquisition [Line Items]                    
Finite-lived Intangible Assets Acquired             $ 43,200      
NanoSemi, Inc. [Member]                    
Business Acquisition [Line Items]                    
Business Combination, Consideration Transferred             64,980      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment 177           177      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other 6,363           6,363      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net 24,174           24,174      
Goodwill 40,806           40,806      
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net 64,980           64,980      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets 1,805           1,805      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill 30,300           30,300      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable (602)           (602)      
Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Lease Obligation (1,546)           (1,546)      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables 175           175      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets 774           774      
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable             17,080      
Business Combination, Consideration Transferred, Liabilities Incurred             $ 34,100      
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares             804,163      
NanoSemi, Inc. [Member] | Contingent Consideration - NanoSemi                    
Business Acquisition [Line Items]                    
Business Combination, Consideration Transferred, Liabilities Incurred             $ 3,800      
NanoSemi, Inc. [Member] | Accrued Liabilities                    
Business Acquisition [Line Items]                    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other 323           323      
NanoSemi, Inc. [Member] | Accrued Compensation                    
Business Acquisition [Line Items]                    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other $ 223           223      
NanoSemi, Inc. [Member] | Cash [Member]                    
Business Acquisition [Line Items]                    
Business Combination, Consideration Transferred             10,000      
NanoSemi, Inc. [Member] | Deferred payment of consideration in business acquisition [Member]                    
Business Acquisition [Line Items]                    
Business Combination, Consideration Transferred             35,000      
NanoSemi, Inc. [Member] | Contingent Consideration - NanoSemi                    
Business Acquisition [Line Items]                    
Business Combination, Consideration Transferred             $ 35,000      
NanoSemi, Inc. [Member] | Developed technology                    
Business Acquisition [Line Items]                    
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life             7 years      
NanoSemi, Inc. [Member] | Customer-Related Intangible Assets                    
Business Acquisition [Line Items]                    
Finite-lived Intangible Assets Acquired             $ 3,000      
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life             5 years      
NanoSemi, Inc. [Member] | Order or Production Backlog                    
Business Acquisition [Line Items]                    
Finite-lived Intangible Assets Acquired             $ 1,700      
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life             5 years 3 months 29 days      
NanoSemi, Inc. [Member] | Technology-Based Intangible Assets                    
Business Acquisition [Line Items]                    
Finite-lived Intangible Assets Acquired             $ 24,400      
NanoSemi, Inc. [Member] | Trademarks and Trade Names                    
Business Acquisition [Line Items]                    
Finite-lived Intangible Assets Acquired             $ 1,200      
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life             7 years