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Goodwill and Intangible Assets - Schedule of Changes in Goodwill (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2019	Sep. 30, 2019
Canyon Semiconductor
Goodwill [Line Items]
Accounting allocation of investment		$ 3.4
Canyon
Goodwill [Line Items]
Percentage of ownership		51.00%
ERIS Technology Corporation \| Yea-Shin Technology Corporation
Goodwill [Line Items]
Accounting allocation of investment		$ 6.4
Percentage of ownership		51.00%
Yea-Shin Technology Corporation \| ERIS Technology Corporation
Goodwill [Line Items]
Percentage of ownership		60.00%
Finalization of Deferred Taxes
Goodwill [Line Items]
Measurement period adjustment in amount of goodwill	$ 4.3