The total number of Board members of the Investee.

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The number of the Company's Board members currently serving on the Investee's Board.

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No definition available.

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Amount of cash outflow to acquire investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as investing activity.

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No definition available.

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The number of warrants issued or sold by the subsidiary or equity method investee per stock transaction.

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No definition available.

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The amount the Company agreed to pay for common stock and warrants upon satisfaction of certain closing conditions under the terms of the securities purchase agreement.

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No definition available.

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The number of tranches in which the Company agreed to purchase common stock and warrants upon satisfaction of certain closing conditions under the terms of the securities purchase agreement.

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No definition available.

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The total number of shares to be purchased under the terms of a securities purchase agreement.

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No definition available.

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The total number of warrants to be purchased under the terms of a securities purchase agreement.

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No definition available.

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Represents the percentage of maximum voting rights under voting agreement.

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No definition available.

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Exercise price per share or per unit of warrants or rights outstanding.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 505
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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of unrealized gain on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

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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.

+ References

No definition available.

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Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
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Financial Instruments and Fair Value Measurements - Equity Investment in Armata (Details) - Armata $ / shares in Units, $ in Millions		3 Months Ended				9 Months Ended
	Jan. 26, 2021 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) Director	Mar. 31, 2021 Tranche	Sep. 30, 2020 USD ($)	Mar. 31, 2020 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) Director	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Equity investment
Equity investment ownership percentage		59.50%	59.60%			59.50%		46.60%
Percentage of maximum voting rights						49.50%
Number of Investee's Board members currently representing the Company \| Director		3				3
Number of the Investee's Board members \| Director		8				8
Unrealized gain from fair value changes in equity investments						$ 25.3	$ 23.0
Unrealized loss from fair value changes in equity investments		$ 11.6		$ 12.4
Common stock and warrants
Equity investment
Payments to acquire equity securities					$ 25.0
Fair value of equity securities		89.3				89.3		$ 44.0
Common stock
Equity investment
Number of shares purchased under the securities purchase agreement \| shares					8,710,800
Fair value of equity securities		53.8				53.8		26.0
Warrants
Equity investment
Number of warrants purchased under the securities purchase agreement \| shares					8,710,800
Fair value of equity securities		$ 35.5				$ 35.5		$ 18.0
Warrants purchased in 2020
Equity investment
Exercise price of warrants \| $ / shares					$ 2.87
Term of warrants					5 years
Warrants purchased in 2021
Equity investment
Exercise price of warrants \| $ / shares	$ 3.25
Term of warrants	5 years
Innoviva Strategic Opportunities, LLC
Equity investment
Number of tranches \| Tranche			2
Innoviva Strategic Opportunities, LLC \| Common stock and warrants
Equity investment
Amount of securities purchase agreement	$ 20.0
Innoviva Strategic Opportunities, LLC \| Common stock
Equity investment
Number of shares to be purchased under the securities purchase agreement \| shares	6,153,847
Innoviva Strategic Opportunities, LLC \| Warrants
Equity investment
Number of warrants to be purchased under the securities purchase agreement \| shares	6,153,847