Amount of investment in equity security without readily determinable fair value.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126980263&loc=SL75117539-209714

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- Definition

Amount of gain from upward price adjustment on investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126980263&loc=SL75117539-209714

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Fair Value and Equity Investments, Equity Investments (Details) - Equity Securities [Member] - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2021	Mar. 31, 2023	Dec. 31, 2022
Equity Securities without Readily Determinable Fair Value [Line Items]
Carrying amount of equity securities without readily determinable fair values		$ 28.1	$ 28.1
Other Income (Expense), Net [Member]
Equity Securities without Readily Determinable Fair Value [Line Items]
Upward fair value adjustments on equity securities	$ 18.1