Leases - Additional Information (Details)		12 Months Ended
	Oct. 02, 2019 USD ($)	Mar. 31, 2020 USD ($) ft²	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Apr. 01, 2019 USD ($)	Mar. 21, 2019
Operating Lease [Line Items]
Operating right-of-use assets			$ 0		$ 4,500,000
Operating lease liability					5,000,000
Deferred rent					$ 600,000
Office space under lease agreement | ft²		45,580
Monthly rental payments		$ 87,000
Base rent escalators		3.00%
Landlord tenant improvements funded amount		$ 500,000
Lease option termination description		option to terminate the lease on or after September 1, 2019 with 9 months prior written notice.
Right-of-use asset write-off				$ 26,000
Lease liabilities write-off				$ 26,000
Gain on lease termination		$ 525,000	0
Lease term						36 months
Monthly rental payments	$ 4,000
Operating lease expense		568,000
Rent expense		19,000	$ 1,173,000
Variable lease expense		305,000
Short term lease cost		$ 37,000
Main Facilities [Member]
Operating Lease [Line Items]
Lease expiration date		Nov. 15, 2019
Right-of-use asset write-off		$ 4,100,000
Lease liabilities write-off		4,600,000
Gain on lease termination		$ 500,000
Lease Term For Remainder of Total Rentable Square Footage [Member]
Operating Lease [Line Items]
Lease expiration date		Aug. 31, 2024
Lease Term For 14,685 of Total Rentable Square Footage [Member]
Operating Lease [Line Items]
Office space under lease agreement | ft²		14,685
Lease expiration date		Oct. 31, 2018