The total number of Board members of the Investee.

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

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.

+ References

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.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

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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- Definition

Represents the percentage of maximum voting rights under voting agreement.

+ References

No definition available.

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
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- Definition

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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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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), classified as current.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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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
-Publisher FASB
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- Definition

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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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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.

+ References

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		12 Months Ended
	Oct. 28, 2021 USD ($) shares	Jan. 26, 2021 USD ($) shares	Mar. 31, 2021 Tranche	Mar. 31, 2020 USD ($) shares	Dec. 31, 2021 USD ($) Director $ / shares	Dec. 31, 2020 USD ($) $ / shares
Equity Investment
Number of Investee's Board members currently representing the Company \| Director					3
Number of the Investee's Board members \| Director					8
Equity investment ownership percentage			59.60%		59.30%	46.60%
Unrealized gain from fair value changes in equity investments					$ 78.7	$ 19.0
Percentage of maximum voting rights					49.50%
Innoviva Strategic Opportunities, LLC
Equity Investment
Number of tranches \| Tranche			2
Common Stock And Warrants [Member]
Equity Investment
Amount of securities purchase agreement				$ 25.0
Equity and long-term investments at fair value					$ 146.7	44.0
Common Stock And Warrants [Member] \| Innoviva Strategic Opportunities, LLC
Equity Investment
Amount of securities purchase agreement		$ 20.0
Common stock
Equity Investment
Number of shares to be purchased under the securities purchase agreement \| shares	1,212,122
Number of shares to be purchased under the securities purchase agreement \| shares				8,710,800
Amount of securities purchase agreement	$ 4.0
Equity and long-term investments at fair value					$ 88.1	$ 26.0
Common stock \| Innoviva Strategic Opportunities, LLC
Equity Investment
Number of shares to be purchased under the securities purchase agreement \| shares		6,153,847
Warrants
Equity Investment
Maximum number of additional shares into which warrants may be converted under the securities purchase agreement \| shares				8,710,800
Exercise price of warrants \| $ / shares						$ 2.87
Term of warrants					5 years
Equity and long-term investments at fair value					$ 58.6	$ 18.0
Maximum number of additional shares into which warrants may be converted under the securities purchase agreement \| shares				8,710,800
Warrants \| Innoviva Strategic Opportunities, LLC
Equity Investment
Number of warrants to be purchased under the securities purchase agreement \| shares		6,153,847
Warrants purchased in 2021
Equity Investment
Exercise price of warrants \| $ / shares					$ 3.25