Discontinued Operations - Major Components of Net Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating expenses:
Net income from discontinued operations, net of tax	$ 60,037	$ 1,136
Brainspace
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	2,220	17,933
Cost of revenue, exclusive of amortization shown below	142	2,492
Amortization expense	0	2,296
Total cost of revenue	142	4,788
Gross profit	2,078	13,145
Operating expenses:
Sales and marketing	240	3,397
Research and development	290	4,285
General and administrative	0	2,811
Depreciation and amortization	0	1,094
Total operating expenses	530	11,587
Income from operations	1,548	1,558
Gain on the disposal of the discontinued operation	58,835	0
Other expense, net	0	(422)
Income from discontinued operations	60,383	1,136
Income tax expense of discontinued operations	(346)	0
Net income from discontinued operations, net of tax	$ 60,037	$ 1,136