Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows provided by operating activities:
Net income	$ 71,291	$ 59,955
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation	5,831	5,512
Excess tax benefits from share-based compensation	(5,484)	(3,361)
Provision for bad debts	7,963	7,412
Depreciation and amortization	21,245	16,387
Deferred income taxes	2,478	(1,077)
Other, including fixed asset impairments	(1,682)	872
Changes in assets and liabilities:
Restricted cash, cash equivalents and investments	4,544	4,144
Accounts receivable	(8,745)	(7,965)
Prepaid expenses and other	3,721	1,373
Due to/from related parties	(492)	(2)
Accounts payable	(2,386)	(1,083)
Accrued liabilities and employee related liabilities	11,973	422
Income taxes receivable/payable	835	(1,214)
Deferred rent	(535)	(560)
Deferred revenue	9,344	5,541
Student deposits	(5,877)	(4,689)
Net cash provided by operating activities	114,024	81,667
Cash flows used in investing activities:
Capital expenditures	(115,615)	(106,346)
Purchases of land, building and golf course improvements related to off-site development	(24,769)	(5,557)
Proceeds received from note receivable	501
Return of equity method investment	1,749
Purchases of investments	(26,025)	(25,023)
Proceeds from sale or maturity of investments	57,449	42,274
Net cash used in investing activities	(106,710)	(94,652)
Cash flows provided by (used in) financing activities:
Principal payments on notes payable and capital lease obligations	(3,831)	(3,374)
Proceeds from draw on revolving line of credit	25,000
Debt issuance costs	(194)
Repurchase of common shares including shares withheld in lieu of income taxes	(19,227)	(4,230)
Excess tax benefits from share-based compensation	5,484	3,361
Net proceeds from exercise of stock options	6,972	2,700
Net cash provided by (used in) financing activities	14,204	(1,543)
Net increase (decrease) in cash and cash equivalents	21,518	(14,528)
Cash and cash equivalents, beginning of period	23,036	65,238
Cash and cash equivalents, end of period	44,554	50,710
Supplemental disclosure of cash flow information
Cash paid for interest	481	534
Cash paid for income taxes	40,176	39,986
Supplemental disclosure of non-cash investing and financing activities
Purchases of property and equipment included in accounts payable	19,798	20,623
Purchases of equipment through capital lease obligations		257
Tax benefit of Spirit warrant intangible	127	129
Shortfall tax expense from share-based compensation	$ 257	$ 18