Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating activities
Net income	$ 15,866	$ 20,238
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	9,287	7,847
Stock-based compensation	2,742	2,424
Investment loss	24	1
Deferred income taxes	228	(1,337)
Other	61	60
Changes in operating assets and liabilities:
Accounts receivable, net of allowance for bad debt	400	1,049
Prepaid expenses and other assets	(318)	(261)
Income tax receivable	1,391	2,372
Accounts payable	(3,978)	(248)
Accrued liabilities	(541)	(8,307)
Income taxes payable	0	0
Deferred revenue and student deposits	(2,431)	(1,613)
Net cash provided by operating activities	22,731	22,225
Investing activities
Capital expenditures	(12,763)	(9,215)
Equity investment	(293)	(1,630)
Note receivable	(225)	(380)
Capitalized program development costs and other assets	(738)	(951)
Net cash used in investing activities	(14,019)	(12,176)
Financing activities
Cash paid for repurchase of common stock	(20,058)	(15,756)
Cash received from issuance of common stock	0	361
Excess (tax)/tax benefit from stock-based compensation	(564)	327
Net cash used in financing activities	(20,622)	(15,068)
Net increase/(decrease) in cash and cash equivalents	(11,910)	(5,019)
Cash and cash equivalents at beginning of period	115,634	94,820
Cash and cash equivalents at end of period	103,724	89,801
Supplemental disclosure of cash flow information
Income taxes paid	$ 9,143	$ 11,138