Shareholders' Equity - Narrative (Details) $ / shares in Units, $ in Thousands	1 Months Ended				2 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) $ / shares shares	Feb. 29, 2020 USD ($) shares	Jan. 31, 2020 USD ($) $ / shares shares	Mar. 31, 2019 Unit1 $ / shares shares	Feb. 29, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)
Sale of Stock [Line Items]
Noncontrolling interest compensation expense						$ 1,439	$ 0	$ 1,439	$ 0
Proceeds from sale of common stock					$ 282,833			283,333	303,221
Other offering expenses								$ 2,300	$ 1,150
Number of directors to whom the Company agreed to issue warrants | Unit1				2
BioShin 2020 Equity Incentive Plan
Sale of Stock [Line Items]
Requisite service period of award (in years)	3 years
Minimum
Sale of Stock [Line Items]
Requisite service period of award (in years)								3 years
Maximum
Sale of Stock [Line Items]
Requisite service period of award (in years)								4 years
Series A preferred shares | Minimum
Sale of Stock [Line Items]
Preferred shares call and put options execution multiple following change of control	2.5
Series A preferred shares | Maximum
Sale of Stock [Line Items]
Preferred shares call and put options execution multiple following change of control	3.5
BioShin Preferred Shares | Series A preferred shares
Sale of Stock [Line Items]
Preferred stock issued and sold (in shares) | shares	15,384,613
Shares issued price per share | $ / shares	$ 3.90
Proceeds from shares issued	$ 60,000
Public Offering
Sale of Stock [Line Items]
Common stock issued (shares) | shares			4,830,917
Issuance price per share (in dollars per share) | $ / shares			$ 51.75
Proceeds from sale of common stock			$ 245,877
Underwriting discounts and commissions			3,623
Other offering expenses			$ 500
Over-Allotment Option
Sale of Stock [Line Items]
Common stock issued (shares) | shares		724,637
Proceeds from sale of common stock		$ 36,956
Underwriting discounts and commissions		$ 543
Credit Agreement Warrants
Sale of Stock [Line Items]
Number of securities called by warrants (shares) | shares				107,500
Exercise price of warrants (in dollars per share) | $ / shares				$ 9.2911