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Debt - Exchange Agreement (Details) - Convertible Debt - USD ($) shares in Millions, $ in Millions			1 Months Ended	4 Months Ended
	May 01, 2021	Apr. 29, 2021	Jun. 03, 2021	Aug. 31, 2021	Sep. 01, 2021	Apr. 20, 2021
Debt Instrument [Line Items]
Debt conversion, converted instrument, shares issued (in shares)		7.1
Inphi 2021 Convertible Notes
Debt Instrument [Line Items]
Aggregate principal amount		$ 9.6			$ 6.1	$ 15.7
Debt conversion, converted instrument, shares issued (in shares)				0.2
Inphi 2021 Convertible Notes | Exchange Agreements
Debt Instrument [Line Items]
Aggregate principal amount						9.6
Inphi 2025 Convertible Notes
Debt Instrument [Line Items]
Aggregate principal amount	$ 114.0	$ 199.5	$ 192.5			506.0
Debt conversion, converted instrument, shares issued (in shares)	2.3		3.8
Inphi 2025 Convertible Notes | Exchange Agreements
Debt Instrument [Line Items]
Aggregate principal amount						$ 199.5

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- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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Face (par) amount of debt instrument at time of issuance.

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