Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 143,780	$ 114,901
Accounts receivable, net of allowance of $11,497 in 2013 and $11,106 in 2012	7,004	10,428
Prepaid expenses	4,131	4,290
Income tax receivable	1,891	4,953
Deferred income taxes	4,011	6,502
Total current assets	160,817	141,074
Property and equipment, net	88,097	82,840
Note receivable	6,000	6,000
Investments	10,557	6,664
Other assets, net	1,266	1,025
Total assets	266,737	237,603
Current liabilities:
Accounts payable	12,179	17,251
Accrued liabilities	14,193	12,042
Income taxes payable
Deferred revenue and student deposits	28,762	25,777
Total current liabilities	55,134	55,070
Deferred income taxes	10,364	11,380
Total liabilities	65,498	66,450
Commitments and contingencies (Note 2)
Stockholders' equity:
Preferred stock, $.01 par value; Authorized shares - 10,000; no shares issued or outstanding
Common stock, $.01 par value; Authorized shares - 100,000; 17,679 issued and outstanding in 2013; 17,844 issued; and outstanding in 2012	177	178
Additional paid-in capital	161,891	157,449
Retained earnings	39,171	13,526
Total stockholders' equity	201,239	171,153
Total liabilities and stockholders' equity	$ 266,737	$ 237,603