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v3.19.3.a.u2

Long-Term Debt - Fujiitsu Note Payable (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Oct. 01, 2018
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Fujitsu Semiconductor Limited | Loans Payable |  |
Debt Instrument [Line Items] |  |
Principal amount of debt | $ 52.3 | $ 50.6

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