UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 262,941	$ 268,918
Marketable securities	8,854	6,501
Tuition receivable, net	75,937	51,277
Income taxes receivable	0	313
Other current assets	48,092	40,777
Total current assets	395,824	367,786
Property and equipment, net	141,736	150,589
Right-of-use lease assets	132,961	149,587
Marketable securities, non-current	17,939	23,377
Intangible assets, net	266,078	276,380
Goodwill	1,256,428	1,285,864
Other assets	49,295	52,297
Total assets	2,260,261	2,305,880
Current liabilities:
Accounts payable and accrued expenses	85,210	95,518
Income taxes payable	4,379	0
Contract liabilities	121,035	73,232
Lease liabilities	25,009	27,005
Total current liabilities	235,633	195,755
Long-term debt	141,437	141,630
Deferred income tax liabilities	38,614	44,595
Lease liabilities, non-current	145,841	162,821
Other long-term liabilities	46,815	47,089
Total liabilities	608,340	591,890
Commitments and contingencies
Stockholders’ equity:
Common stock, par value $0.01; 32,000,000 shares authorized; 24,592,098 and 24,637,268 shares issued and outstanding at December 31, 2021 and June 30, 2022, respectively	246	246
Additional paid-in capital	1,513,509	1,529,969
Accumulated other comprehensive income (loss)	(28,009)	9,203
Retained earnings	166,175	174,572
Total stockholders’ equity	1,651,921	1,713,990
Total liabilities and stockholders’ equity	$ 2,260,261	$ 2,305,880