Commitments and Contingencies - Lease Liabilities and Right-of-Use Lease Assets (Details) $ in Thousands	Mar. 31, 2020 USD ($)
Lease Assets and Liabilities
One year or less	$ 3,188
More than one year to two years	2,449
Total undiscounted future minimum lease payments	5,637
Less: difference between lease payments and discounted lease liabilities	104
Lease liability	5,533
Right-of-use assets	4,810
Prepaid lease assets, net of lease allowances and incentives	723
Total	$ 5,533