Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue	$ 154,747	$ 88,541
Costs and expenses:
Instructional costs and services	71,698	32,319
Selling and promotional	39,319	19,402
General and administrative	29,589	23,524
Loss on disposals of long-lived assets	793	8
Depreciation and amortization	8,148	2,651
Total costs and expenses	149,547	77,904
Income from operations before interest and income taxes	5,200	10,637
Gain on acquisition	4,533	0
Interest (expense) income	(3,355)	114
Income before income taxes	6,378	10,751
Income tax expense	1,040	2,639
Equity investment loss	(5)	(5)
Net income	$ 5,333	$ 8,107
Net income per common share:
Basic (in dollars per share)	$ 0.28	$ 0.50
Diluted (in dollars per share)	$ 0.28	$ 0.49
Weighted average number of common shares:
Basic (in shares)	18,805	16,211
Diluted (in shares)	18,879	16,422