Commitments and Contingencies (Details) $ in Thousands	1 Months Ended				4 Months Ended	12 Months Ended
	Dec. 31, 2021 USD ($)	Aug. 31, 2021 USD ($)	Dec. 11, 2020 lawsuit	Jul. 31, 2020 USD ($)	Apr. 30, 2021 stockholder	Jun. 30, 2020 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2020 USD ($) installment	Mar. 27, 2020
Commitments and contingencies
Employer portion of social security payroll tax percentage									6.20%
Deferred amount of employer portion of social security payroll tax								$ 14,100
Number of installments that deferred employer social security payroll taxes will be repaid | installment								2
Deferred amount paid	$ 7,050
Forecast
Commitments and contingencies
Deferred amount payable							$ 7,050
Buildings
Commitments and contingencies
Guarantees related to lease commitments	$ 300
Georgia Cyber Academy, Inc.
Commitments and contingencies
Settlement and release agreement		$ 9,000				$ 19,000
Litigation settlement payment receivable period						2 years
Proceeds from legal settlements		$ 8,640		$ 10,000
Securities Litigation | Pending Litigation
Commitments and contingencies
Number of lawsuits | lawsuit			2
Shemen Case And Ahmed Case | Pending Litigation
Commitments and contingencies
Number of shareholders who filed suit | stockholder					3