UNAUDITED CONDENSED 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]
Revenues	$ 263,123	$ 270,078	$ 795,542	$ 859,587
Costs and expenses:
Instructional and support costs	153,162	153,651	445,154	459,394
General and administration	97,753	95,714	289,259	275,954
Amortization of intangible assets	3,522	8,932	10,954	47,731
Merger and integration costs	269	1,111	933	4,060
Restructuring costs	610	3,322	6,129	26,400
Total costs and expenses	255,316	262,730	752,429	813,539
Income from operations	7,807	7,348	43,113	46,048
Other income (expense)	(262)	(1,848)	(1,133)	1,076
Income before income taxes	7,545	5,500	41,980	47,124
Provision for income taxes	1,453	1,646	13,639	13,717
Net income	$ 6,092	$ 3,854	$ 28,341	$ 33,407
Earnings per share:
Basic (in dollars per share)	$ 0.26	$ 0.16	$ 1.19	$ 1.39
Diluted (in dollars per share)	$ 0.25	$ 0.16	$ 1.18	$ 1.38
Weighted average shares outstanding:
Basic (in shares)	23,550	23,948	23,765	23,966
Diluted (in shares)	23,902	24,113	24,026	24,131