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Business Acquisitions (Schedule of Intangible Assets Acquired) (Details) - Jaybird LLC of Salt Lake City - USD ($) $ in Thousands |  | 12 Months Ended
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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 |

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