Condensed Consolidated Balance Sheets - USD ($) $ in Thousands		Sep. 30, 2024	Dec. 31, 2023
CURRENT ASSETS:
Cash and cash equivalents, unrestricted		$ 238,049	$ 118,009
Restricted cash		773	1,012
Total cash, cash equivalents and restricted cash		238,822	119,021
Short-term investments		483,772	485,135
Total cash and cash equivalents, restricted cash and short-term investments		722,594	604,156
Student receivables, gross		67,599	64,011
Allowance for credit losses		(35,581)	(34,613)
Student receivables, net		32,018	29,398
Receivables, other		4,114	4,539
Prepaid expenses		10,665	11,712
Inventories		3,870	5,004
Other current assets		263	155
Total current assets		773,524	654,964
NON-CURRENT ASSETS:
Property and equipment, net of accumulated depreciation of $64,602 and $58,785 as of September 30, 2024 and December 31, 2023, respectively		18,099	21,371
Right of use asset, net		15,669	19,096
Goodwill		241,162	241,162
Intangible assets, net of amortization of $26,937 and $23,612 as of September 30, 2024 and December 31, 2023, respectively		32,894	36,219
Student receivables, gross		8,656	7,028
Allowance for credit losses		(2,752)	(3,169)
Student receivables, net		5,904	3,859
Deferred income tax assets, net		23,010	23,804
Other assets		6,494	6,841
TOTAL ASSETS	[1]	1,116,756	1,007,316
CURRENT LIABILITIES:
Lease liability-operating		4,969	5,701
Accounts payable		13,647	10,766
Accrued expenses:
Payroll and related benefits		33,517	32,684
Advertising and marketing costs		7,969	7,196
Income taxes		10,396	3,974
Other		21,322	13,503
Deferred revenue		49,347	37,215
Total current liabilities		141,167	111,039
NON-CURRENT LIABILITIES:
Lease liability-operating		17,317	21,346
Other liabilities		22,841	33,510
Total non-current liabilities		40,158	54,856
Commitments and Contingencies (Note 8)
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; 91,020,793 and 90,270,306 shares issued, 65,716,357 and 65,544,539 shares outstanding as of September 30, 2024 and December 31, 2023, respectively		910	903
Additional paid-in capital		704,346	694,798
Accumulated other comprehensive income (loss)		1,568	(666)
Retained earnings		573,031	480,606
Treasury stock, at cost; 25,304,436 and 24,725,767 shares as of September 30, 2024 and December 31, 2023, respectively		(344,424)	(334,220)
Total stockholders' equity		935,431	841,421
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY		$ 1,116,756	$ 1,007,316

[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.