Consolidated Statements of Cash Flows - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income		$ 159,914	$ 147,590	$ 147,652
Adjustments to reconcile net income to net cash provided by operating activities:
Asset impairment		6	4,453	14,263
Gain on sale of asset				(22,086)
Depreciation and amortization expense		41,627	14,645	16,887
Bad debt expense		29,492	33,719	33,215
Compensation expense related to share-based awards		11,730	10,188	8,078
Deferred income taxes		3,830	2,656	3,761
Changes in operating assets and liabilities:
Student receivables, gross		(4,898)	(4)	15,929
Allowance for credit losses		(27,601)	(27,981)	(38,573)
Receivables, other		(2,072)	(8,052)	(3,922)
Inventories, prepaid expenses, and other current assets		2,510	4,473	(2,994)
Other non-current assets		(383)	692	478
Accounts payable		1,466	(727)	(4,878)
Accrued expenses and other non-current liabilities		9,937	(5,792)	(19,235)
Deferred revenue		1,104	(10,612)	(34,375)
Right of use asset and lease liability - operating leases		(1,422)	(3,654)	(2,175)
Net cash provided by operating activities		225,240	161,594	112,025
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of available-for-sale investments		(392,760)	(412,894)	(314,279)
Sales of available-for-sale investments		345,803	447,502	238,184
Purchases of property and equipment		(8,576)	(4,625)	(6,411)
Business acquisitions, net of cash acquired		854	(137,766)
Sale of equity method investment		1,038
Earnout payment related to business acquisition				(6,000)
Net cash used in investing activities		(53,641)	(107,783)	(88,506)
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchase of treasury stock		(120,793)	(6,769)	(8,301)
Issuance of common stock		1,643	2,234	2,545
Payments of employee tax associated with stock compensation		(7,544)	(3,436)	(2,209)
Payments of cash dividends and dividend equivalents		(36,855)	(31,699)	(14,417)
Release of cash held in escrow		(300)	(276)	(1,000)
Earnout payments for business acquisition		(1,757)
Principal payments for finance leases	[1]	(4,977)	(398)
Principal payments for failed sale leaseback		(489)	(735)
Net cash used in financing activities		(171,072)	(41,079)	(23,382)
NET INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH		527	12,732	137
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, beginning of the year		131,753	119,021	118,884
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, end of the year		132,280	131,753	119,021
Supplemental Cash Flow Information:
Income taxes paid		49,347	46,840	41,751
Interest paid on finance leases and failed sale-leaseback		6,196	81
Supplemental Non-Cash Disclosures:
Non-cash additions to property and equipment		$ 383	247	$ 329
Right of use assets obtained in exchange for lease liabilities			$ 3,310

[1] Cash flows are presented on a consolidated basis and represent cash payments for fixed and variable lease costs.