Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%
Open Tax Year	2014 2015 2016 2017 2018 2019 2020
Unrecognized Tax Benefits, Ending Balance	$ 0
Unrecognized Tax Benefits, Period Increase (Decrease), Total	0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total	0
Unrecognized Tax Benefits, Income Tax Penalties Accrued	0
Federal [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	0	$ 3,100
Tax credit carryforward, amount	42,000	100
State [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 3,700	$ 5,900