Annual report pursuant to Section 13 and 15(d)

Cash Equivalents - Summary of Cash Equivalents (Details)

v3.19.3.a.u2
Cash Equivalents - Summary of Cash Equivalents (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Cash And Cash Equivalents [Line Items]  
Amortized Cost $ 16,514
Estimated Fair Value 16,514
Money Market Mutual Funds  
Cash And Cash Equivalents [Line Items]  
Amortized Cost 16,514
Estimated Fair Value $ 16,514