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Business Acquisitions (Schedule of Intangible Assets Acquired) (Details) - Jaybird LLC of Salt Lake City - USD ($)
$ in Thousands
12 Months Ended
Apr. 20, 2016
Mar. 31, 2017
Business Acquisition [Line Items]    
Finite-lived intangible assets acquired $ 47,730  
Estimated useful life 6 years 1 month 6 days  
Total intangible assets $ 50,280  
Developed technology    
Business Acquisition [Line Items]    
Finite-lived intangible assets acquired $ 18,450  
Estimated useful life 4 years 5 years
Customer relationships    
Business Acquisition [Line Items]    
Finite-lived intangible assets acquired $ 19,900  
Estimated useful life 8 years  
Trade name    
Business Acquisition [Line Items]    
Finite-lived intangible assets acquired $ 9,380  
Estimated useful life 6 years  
In-process research & development (IPR&D)    
Business Acquisition [Line Items]    
Indefinite-lived intangible assets acquired $ 2,550