Annual report pursuant to Section 13 and 15(d)

Available-for-Sale Securities - Summary of Amortized Cost and Estimated Fair Value of Available-for-sale Securities by Contractual Maturity (Details)

v3.20.1
Available-for-Sale Securities - Summary of Amortized Cost and Estimated Fair Value of Available-for-sale Securities by Contractual Maturity (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Available-for-sale securities maturing, Amortized Cost:  
In one year or less, Amortized Cost $ 77,955
Amortized Cost 77,955
Available-for-sale securities maturing, Estimated Fair Value:  
In one year or less, Estimated Fair Value 77,986
Total available-for-sale securities, Estimated Fair Value $ 77,986