Fair Value Measurements - Derivatives (Details) - Put Option Liability (Madryn)	Jun. 30, 2020	Dec. 31, 2019
Interest rate volatility
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative liability (as a percent)	0.218	0.214
Market yield rate
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative liability (as a percent)	0.111	0.101
Term (in years)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative liability (as a percent)	5.25	5.75
Dividend yield
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative liability (as a percent)	0	0