Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Revenue	$ 149,535	$ 98,248	$ 453,890	$ 264,803
Costs and expenses:
Instructional costs and services	71,817	42,544	215,604	105,257
Selling and promotional	40,917	23,458	116,082	60,350
General and administrative	29,667	26,598	89,179	75,579
Impairment of goodwill and intangible assets	0	0	144,900	0
Loss on disposals of long-lived assets	178	0	962	182
Depreciation and amortization	7,982	4,386	24,249	9,561
Total costs and expenses	150,561	96,986	590,976	250,929
(Loss) income from operations before interest and income taxes	(1,026)	1,262	(137,086)	13,874
Gain on acquisition (Note 3)	0	0	3,828	0
Interest expense	(3,594)	(1,305)	(10,339)	(1,167)
(Loss) income before income taxes	(4,620)	(43)	(143,597)	12,707
Income tax (benefit) expense	(860)	224	(35,152)	3,509
Equity investment loss	(2)	0	(13)	(827)
Net (loss) income	$ (3,762)	$ (267)	$ (108,458)	$ 8,371
Net (loss) income per common share:
Basic (in dollars per share)	$ (0.20)	$ (0.01)	$ (5.75)	$ 0.47
Diluted (in dollars per share)	$ (0.20)	$ (0.01)	$ (5.74)	$ 0.46
Weighted average number of common shares:
Basic (in shares)	18,885	18,700	18,854	17,874
Diluted (in shares)	18,927	18,855	18,906	18,048