Summary of Significant Accounting Policies - Fair Value of Cash Equivalents (Details) $ in Thousands	Mar. 31, 2020 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market fund	$ 40,425
Price Quotations (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market fund	40,425
Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market fund	0
Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market fund	$ 0