Agreement To Maintain And Continue In Business, Term

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Contractual Minimum Number of Days Before Closing

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Estimated Time Of Regulatory Approval, Maximum

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Estimated Time Of Regulatory Approval, Minimum

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Joint Venture Agreement, Call Option, Exercise Price

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Joint Venture Agreement, Put and Call Rights, Term

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Variable Interest Entity, Additional Purchase of Ownership Interest, Percentage

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- Definition

The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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-Section 45
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- Definition

Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

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-Name Accounting Standards Codification
-Topic 942
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The amount of financial or other support the reporting entity has provided (explicitly or implicitly) to the Variable Interest Entity (VIE) that it was not previously contractually required to provide or that the reporting entity intends to provide, including, for example, situations in which the reporting entity assisted the VIE in obtaining another type of support.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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Investment in Aizu Fujitsu Semiconductor Wafer Solution Limited ("AFSW") - Narrative (Details) ¥ in Millions			3 Months Ended	9 Months Ended			12 Months Ended
	May 23, 2017 USD ($)	May 23, 2017 JPY (¥)	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Variable Interest Entity [Line Items]
Investment in joint venture	$ 9,000	¥ 1			$ 5,327,000	$ 1,696,000	$ 2,698,000	$ 1,852,000
Unfunded commitment					$ 1,400,000
Put and call rights term							180 days
Forecast
Variable Interest Entity [Line Items]
Expected exercise price under certain conditions				$ 1
Minimum number of days before closing				60 days
Estimated time of regulatory approval, minimum				3 years
Estimated time of regulatory approval, maximum				6 months
Subsequent Event
Variable Interest Entity [Line Items]
Unfunded commitment				$ 1,300,000
Subsequent Event \| Forecast
Variable Interest Entity [Line Items]
Agreement to maintain and continue AFSW, term				1 year
Aizu Fajitsu Semiconductor Wafer Solution Limited
Variable Interest Entity [Line Items]
Ownership percentage in entity					49.00%		49.00%
Additional financial support provided to investment			$ 2,698,000		$ 5,327,000		$ 2,698,000	1,852,000
Unfunded commitment					$ 1,700,000		$ 1,700,000	$ 659,000
Fujitsu Semiconductor Limited \| Forecast
Variable Interest Entity [Line Items]
Purchase of additional interest					51.00%
Fujitsu Semiconductor Limited \| Aizu Fajitsu Semiconductor Wafer Solution Limited
Variable Interest Entity [Line Items]
Ownership percentage in entity					51.00%		51.00%