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Subsequent Events (Details) - Subsequent events - Entasis
$ in Millions
Apr. 12, 2020
USD ($)
director
tranche
Scenario 1  
Subsequent Events  
Number of Innoviva board members to join investee's board 2
Scenario 1 | Minimum  
Subsequent Events  
Equity investment ownership percentage 15.00%
Scenario 2  
Subsequent Events  
Number of Innoviva board members to join investee's board 1
Scenario 2 | Minimum  
Subsequent Events  
Equity investment ownership percentage 8.00%
Common Stock and Warrants  
Subsequent Events  
Amount of securities purchase agreement | $ $ 35.0
Number of tranches | tranche 2