v2.4.0.8

Subsequent Event (Details) (Hua Hong Semiconductor Company [Member]) In Millions, except Share data, unless otherwise specified | Sep. 30, 2014 USD ($) | Oct. 31, 2014 Subsequent Event USD ($) | Oct. 31, 2014 Subsequent Event HKD
--- | --- | --- | ---
Subsequent Event [Line Items] |  |  |
Hua Hong Semiconductor Limited shares owned by Microchip Technology | 27,964,822 |  |
Carrying value of Hua Hong Semiconductor shares owned | $ 3.6 |  |
Cost Method Investments, Fair Value Disclosure |  | $ 39.2 |
Share Price |  | $ 1.40 | 10.88

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