Summary of Significant Accounting Policies (Narrative) (Detail) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Investment Owned, at Cost	$ 6.6		$ 6.6
Number of Reportable Segments	4
Severance Costs	$ 3.0
Forecast [Member]
Severance Costs		$ 13.0
Evofem [Member]
Investment Owned, at Cost	$ 60.0

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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