Condensed Consolidated Balance Sheets - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
CURRENT ASSETS:
Cash and cash equivalents, unrestricted		$ 165,639	$ 109,408
Restricted cash		8,476	9,476
Total cash, cash equivalents and restricted cash		174,115	118,884
Short-term investments		429,617	399,315
Total cash and cash equivalents, restricted cash and short-term investments		603,732	518,199
Student receivables, gross		77,536	81,197
Allowance for credit losses		(36,257)	(38,646)
Student receivables, net		41,279	42,551
Receivables, other		11,991	3,457
Prepaid expenses		10,144	8,411
Inventories		2,183	1,904
Other current assets		261	597
Total current assets		669,590	575,119
NON-CURRENT ASSETS:
Property and equipment, net of accumulated depreciation of $61,230 and $54,238 as of September 30, 2023 and December 31, 2022, respectively		23,530	26,038
Right of use asset, net		22,073	26,156
Goodwill		241,162	243,540
Intangible assets, net of amortization of $22,197 and $15,981 as of September 30, 2023 and December 31, 2022, respectively		39,973	53,564
Student receivables, gross		4,625	6,345
Allowance for credit losses		(3,451)	(4,495)
Student receivables, net		1,174	1,850
Deferred income tax assets, net		23,316	24,613
Other assets		5,216	6,488
TOTAL ASSETS	[1]	1,026,034	957,368
CURRENT LIABILITIES:
Lease liability-operating		5,761	6,555
Accounts payable		14,542	13,518
Accrued expenses:
Payroll and related benefits		41,088	40,306
Advertising and marketing costs		5,785	8,977
Income taxes		12,611	7,814
Other		20,753	14,621
Deferred revenue		38,704	71,590
Total current liabilities		139,244	163,381
NON-CURRENT LIABILITIES:
Lease liability-operating		22,867	27,286
Other liabilities		34,264	40,856
Total non-current liabilities		57,131	68,142
STOCKHOLDERS' EQUITY:
Preferred stock, $0.01 par value; 1,000,000 shares authorized; none issued or outstanding
Common stock, $0.01 par value; 300,000,000 shares authorized; 90,075,573 and 89,396,192 shares issued, 65,668,638 and 67,175,485 shares outstanding as of September 30, 2023 and December 31, 2022, respectively		901	894
Additional paid-in capital		691,576	684,183
Accumulated other comprehensive loss		(4,999)	(5,447)
Retained earnings		470,829	347,839
Treasury stock, at cost; 24,406,935 and 22,220,707 shares as of September 30, 2023 and December 31, 2022, respectively		(328,648)	(301,624)
Total stockholders' equity		829,659	725,845
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY		$ 1,026,034	$ 957,368

[1] Total assets are presented on a condensed consolidated basis and do not include intercompany receivable or payable activity between institutions and corporate and investments in subsidiaries.