XML 113 R44.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Summary of Significant Accounting Policies (Details)
$ in Millions
12 Months Ended
Jul. 07, 2016
USD ($)
Dec. 31, 2019
USD ($)
reporting_unit
segments
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Mar. 31, 2019
USD ($)
Accounting Policies [Line Items]          
Revenue Recognition, Sales Discounts and Rebates   $ 4.7 $ 8.1 $ 9.1  
Operating Lease, Right-of-Use Asset and Liability         $ 40.0
Operating Lease, Liability   34.4      
Operating Lease, Right-of-Use Asset   33.6 0.0    
Proceeds from Divestiture of Businesses   $ 0.0 10.0 123.1  
Goodwill and Intangible Assets [Abstract]          
Number of Reporting Units | reporting_unit   3      
Goodwill   $ 909.9 887.9 884.9  
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)   0.0      
Property, Plant and Equipment [Abstract]          
Total impairment charges   $ 0.0 0.0 19.9  
Revenue Recognition [Abstract]          
Number of reportable segments | segments   2      
Document Fiscal Year Focus   2019      
Revenue Recognition, Sales Returns, Reserve for Sales Returns   $ 6.6 7.7 8.5  
Increase (Decrease) in Contract Receivables, Net   152.8 128.6    
Noncash Investing and Financing Items [Abstract]          
Purchases of property and equipment included in accounts payable   $ 4.7 7.1 8.5  
Maximum          
Goodwill and Intangible Assets [Abstract]          
Finite-Lived Intangible Asset, Useful Life   10 years      
Minimum          
Goodwill and Intangible Assets [Abstract]          
Finite-Lived Intangible Asset, Useful Life   5 years      
Percentage of fair value in excess of carrying amount   30.00%      
Accumulated Deficit          
Accounting Policies [Line Items]          
Cumulative Effect of New Accounting Principle in Period of Adoption   $ 0.1      
Buildings and improvements | Maximum          
Property, Plant and Equipment [Abstract]          
Property, plant and equipment, useful life   31 years 6 months      
Buildings and improvements | Minimum          
Property, Plant and Equipment [Abstract]          
Property, plant and equipment, useful life   5 years      
Machinery and equipment | Maximum          
Property, Plant and Equipment [Abstract]          
Property, plant and equipment, useful life   7 years      
Machinery and equipment | Minimum          
Property, Plant and Equipment [Abstract]          
Property, plant and equipment, useful life   1 year 6 months      
Furniture and fixtures | Maximum          
Property, Plant and Equipment [Abstract]          
Property, plant and equipment, useful life   5 years      
Furniture and fixtures | Minimum          
Property, Plant and Equipment [Abstract]          
Property, plant and equipment, useful life   2 years      
Vehicles          
Property, Plant and Equipment [Abstract]          
Property, plant and equipment, useful life   3 years      
Software and software development costs | Maximum          
Property, Plant and Equipment [Abstract]          
Property, plant and equipment, useful life   5 years      
Software and software development costs | Minimum          
Property, Plant and Equipment [Abstract]          
Property, plant and equipment, useful life   3 years      
Speaker and Receiver Product Line | Discontinued Operations, Disposed of by Sale [Member]          
Accounting Policies [Line Items]          
Proceeds from Divestiture of Businesses $ 40.6        
Patents          
Goodwill and Intangible Assets [Abstract]          
Finite-Lived Intangible Assets, Period Increase (Decrease)   $ 0.0      
Patents | Maximum          
Goodwill and Intangible Assets [Abstract]          
Finite-Lived Intangible Asset, Useful Life   10 years      
Patents | Minimum          
Goodwill and Intangible Assets [Abstract]          
Finite-Lived Intangible Asset, Useful Life   7 years      
Impairment of Fixed and Other Assets          
Property, Plant and Equipment [Abstract]          
Total impairment charges       21.3  
Precision Devices          
Goodwill and Intangible Assets [Abstract]          
Goodwill   $ 31.2 28.0 25.0  
Precision Devices | Timing Device Business [Member] | Discontinued Operations, Disposed of by Sale [Member]          
Accounting Policies [Line Items]          
Proceeds from Divestiture of Businesses     135.1    
Audio          
Goodwill and Intangible Assets [Abstract]          
Goodwill   878.7 859.9 859.9  
Property, Plant and Equipment [Abstract]          
Total impairment charges   0.0   $ 21.3  
Prepaid Expenses and Other Current Assets [Member] | Precision Devices | Timing Device Business [Member]          
Accounting Policies [Line Items]          
Proceeds from Divestiture of Businesses     $ 10.0    
Mobile Consumer Electronics [Member]          
Goodwill and Intangible Assets [Abstract]          
Goodwill   740.9      
Hearing Health Technologies [Member]          
Goodwill and Intangible Assets [Abstract]          
Goodwill   137.8      
Capacitors [Member]          
Goodwill and Intangible Assets [Abstract]          
Goodwill   $ 31.2