Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Revenue	$ 648,862	$ 624,559	$ 600,545
Costs and expenses:
Instructional costs and services	297,020	295,703	292,862
Selling and promotional	137,252	128,810	132,955
General and administrative	144,582	141,961	128,239
Depreciation and amortization	16,148	19,303	27,816
Impairment of goodwill and intangible assets	0	0	64,000
Loss on sale of subsidiary (Note 2)	3,877	0	0
Loss on assets held for sale (Note 5)	1,527	1,618	2,425
Loss on leases (Note 7)	77	3,715	0
Loss on disposals of long-lived assets	444	383	554
Total costs and expenses	600,927	591,493	648,851
(Loss) income from operations before interest and income taxes	47,935	33,066	(48,306)
Interest expense, net	(4,230)	(2,127)	(4,459)
(Loss) income from operations before income taxes	43,705	30,939	(52,765)
Income tax (benefit) expense	12,148	10,419	(10,715)
Equity investment loss	0	(4,407)	(5,236)
Net (loss) income	31,557	16,113	(47,286)
Preferred stock dividends	2,751	6,056	6,008
Loss on redemption of preferred stock	3,501	0	0
Net income (loss) available to common stockholders basic	25,305	10,057	(53,294)
Net income (loss) available to common stockholders diluted	$ 25,305	$ 10,057	$ (53,294)
Net (loss) income per common share:
Basic (in dollars per share)	$ 1.40	$ 0.57	$ (2.94)
Diluted (in dollars per share)	$ 1.36	$ 0.55	$ (2.93)
Weighted average number of shares outstanding:
Basic (in shares)	18,011	17,625	18,112
Diluted (in shares)	18,660	18,149	18,193