Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
CURRENT ASSETS:
Cash and cash equivalents, unrestricted		$ 108,687	$ 32,394
Restricted cash			337
Short-term investments		185,488	196,428
Total cash and cash equivalents, restricted cash and short-term investments		294,175	229,159
Student receivables, net of allowance for doubtful accounts of $29,856 and $23,307 as of December 31, 2019 and 2018, respectively		55,018	28,751
Receivables, other, net		1,381	2,567
Prepaid expenses		7,299	7,771	[1]
Inventories		576	763
Other current assets		1,936	437
Total current assets		360,385	269,448
NON-CURRENT ASSETS:
Property and equipment, net of accumulated depreciation of $92,933 and $198,052 as of December 31, 2019 and 2018, respectively		26,006	30,048
Right of use asset, net		50,366
Goodwill		87,356	87,356
Intangible assets, net of amortization of $1,400 as of both December 31, 2019 and 2018		7,900	7,900
Student receivables, net of allowance for doubtful accounts of $2,108 and $1,529 as of December 31, 2019 and 2018, respectively		1,244	942
Deferred income tax assets, net		60,169	81,628
Other assets		5,639	4,993
Assets of discontinued operations		81	178
TOTAL ASSETS	[2]	599,146	482,493
CURRENT LIABILITIES:
Lease liability-operating		11,784
Accounts payable		11,533	9,195
Accrued expenses:
Payroll and related benefits		27,616	24,530
Advertising and marketing costs		10,479	9,300
Income taxes		1,376	1,472
Other		16,375	19,668	[1]
Deferred revenue		24,647	32,351
Liabilities of discontinued operations		3	536
Total current liabilities		103,813	97,052
NON-CURRENT LIABILITIES:
Lease liability-operating		52,391
Deferred rent obligations	[1]		12,745
Other liabilities		11,647	17,493	[1]
Total non-current liabilities		64,038	30,238
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; 85,953,253 and 85,173,686 shares issued, 70,151,357 and 69,772,910 shares outstanding as of December 31, 2019 and 2018, respectively		860	852
Additional paid-in capital		639,335	628,295
Accumulated other comprehensive income (loss)		344	(298)
Accumulated earnings (deficit)		18,071	(52,946)	[3]
Treasury stock, at cost, 15,801,896 and 15,400,776 shares as of December 31, 2019 and 2018, respectively		(227,315)	(220,700)
Total stockholders' equity		431,295	355,203
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY		$ 599,146	$ 482,493

[1] Balances as of December 31, 2018 that related to prepaid rent, remaining lease obligations for vacated spaces and deferred rent obligations were offset with the ROU asset as of January 1, 2019

[2] The statement of income (loss) and comprehensive income (loss) balances including revenue, operating income (loss), depreciation and amortization and capital expenditures are presented above on a continuing operations basis. Total assets are presented on a consolidated basis including continuing and discontinued operations and do not include intercompany receivable or payable activity between institutions and corporate and investments in subsidiaries.

[3] Certain leases resulted in a negative ROU asset upon transition to ASC 842 related to vacated spaces that had liabilities previously established. Those leases that resulted in a negative ROU asset were recorded as an adjustment, net of tax, to accumulated earnings (deficit) within stockholders equity on our consolidated balance sheet as of January 1, 2019