Leases - Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating Leases
2020 (Excluding three months ended March 31, 2020)	$ 2,186
2020	2,842
2021	2,863
2022	2,994
2023	3,300
Thereafter	32,773
Total Lease Payments	46,958
Less: Imputed interest	(20,875)
Present Value of Lease Liabilities	26,083	$ 24,222
Finance Leases
2020 (Excluding three months ended March 31, 2020)	112
2020	120
2021	120
2022	120
2023	4,060
Thereafter	0
Total Lease Payments	4,532
Less: Imputed interest	(433)
Present Value of Lease Liabilities	4,099		$ 4,100
Operating And Finance Leases, Liability, Payments, Due Year Two	2,962
Operating And Finance Leases, Liability, Payments, Due Year Three	2,983
Operating And Finance Leases, Liability, Payments, Due Year Four	3,114
Operating And Finance Leases, Liability, Payments, Due Year Five	7,360
Operating And Finance Leases, Liability, Payments, Due after Year Five	32,773
Operating And Finance Leases, Liability, Payments, Remainder of Fiscal Year	2,298
Operating And Finance Leases, Liability, Payment, Due	51,490
Operating And Finance Leases, Liability, Undiscounted Excess Amount	(21,308)
Operating And Finance Leases, Liability	$ 30,182