XML 128 R111.htm IDEA: XBRL DOCUMENT v3.8.0.1
Selected Quarterly Financial Data Selected Quarterly Financial Data - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 29, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jul. 01, 2016
Apr. 01, 2016
Apr. 03, 2015
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Contingency [Line Items]                        
Restructuring and Related Cost                   $ 6,586 [1] $ 18,002 $ 1,485
Gross Margin Percentage   51.10% 41.10% 48.70%   50.70% 46.60%          
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment                   0 1,955  
Provision for excess and obsolete inventories                   6,005 6,871 1,585
Amortization of intangibles                   8,322 [2] 14,836 6,502
Valuation Allowance Deferred Tax Asset Deductions                   5,752 8,356 13,722
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations                   2,200 1,000 900
Foreign [Member]                        
Income Tax Contingency [Line Items]                        
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount $ (5,800)       $ (8,400)              
Domestic Tax Authority [Member]                        
Income Tax Contingency [Line Items]                        
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 9,000       18,300              
Vislink plc [Member]                        
Income Tax Contingency [Line Items]                        
Cost-method Investments, Other than Temporary Impairment 500         $ 1,200   $ 1,500        
VJU Gmbh [Member]                        
Income Tax Contingency [Line Items]                        
Cost-method Investments, Other than Temporary Impairment                 $ 2,500      
TVN [Member]                        
Income Tax Contingency [Line Items]                        
Business Combination, Acquisition and Integration Related Expenses $ 100 $ 100 $ 500 $ 2,200 5,200 $ 5,300 $ 3,400 $ 3,000        
TVN Voluntary Departure Plan [Member]                        
Income Tax Contingency [Line Items]                        
Restructuring and Related Cost         $ 13,100              
Cost of Sales [Member]                        
Income Tax Contingency [Line Items]                        
Amortization of intangibles                   5,180 4,434 $ 719
Operating Segments [Member] | Cable Edge [Member]                        
Income Tax Contingency [Line Items]                        
Provision for excess and obsolete inventories                     $ 32,200  
Valuation Allowance, Operating Loss Carryforwards [Member]                        
Income Tax Contingency [Line Items]                        
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount                   $ 9,000    
[1] The restructuring and related charges for the year ended December 31, 2016 is net of $0.6 million and $1.4 million, in product cost of revenue and operating expenses-restructuring and related charges, respectively, of gain from TVN pension curtailment. See discussion below “Harmonic 2016 Restructuring Plan-TVN VDP” for additional information on the gain from TVN pension curtailment.
[2] For the years ended December 31, 2017 and 2016, the unallocated corporate expenses included TVN acquisition- and integration-related costs, TVN VDP costs (see Note 10, “Restructuring and Related charges-TVN VDP,” for more information on TVN VDP ) and Cable Edge product line inventory obsolescence costs, totaling $7.9 million and $32.2 million, respectively. In addition, in fiscal year 2017, the unallocated corporate expenses included $8.0 million of Avid litigation settlement cost and associated legal fees (see Note 19, “Legal Proceedings,” for more information). The remaining unallocated corporate expenses for all years presented above include primarily other restructuring charges and excess facilities charges.