Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows provided by operating activities:
Net income	$ 113,648	$ 175,231
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation	9,484	8,715
Depreciation and amortization	17,023	16,401
Amortization of intangible assets	6,315	6,315
Deferred income taxes	368	2,333
Other, including fixed asset impairments	1,013	478
Changes in assets and liabilities:
Accounts receivable and interest receivable from university partners	(31,107)	(32,815)
Other assets	(1,288)	(2,451)
Right-of-use assets and lease liabilities	700	445
Accounts payable	(5,768)	23,487
Accrued liabilities	2,162	13,358
Income taxes receivable/payable	(8,172)	(5,806)
Deferred revenue	6,092	3,204
Net cash provided by operating activities	110,470	208,895
Cash flows used in investing activities:
Capital expenditures	(26,301)	(21,352)
Additions of amortizable content	(294)	(409)
Funding to GCU		(190,000)
Repayment by GCU		190,000
Purchases of investments	(132,096)	(56,335)
Proceeds from sale or maturity of investments	63,373	66,792
Net cash used in investing activities	(95,318)	(11,304)
Cash flows used in financing activities:
Principal payments on notes payable		(24,859)
Repurchase of common shares and shares withheld in lieu of income taxes	(576,206)	(360,179)
Net proceeds from exercise of stock options		2,680
Net cash used in financing activities	(576,206)	(382,358)
Net decrease in cash and cash equivalents and restricted cash	(561,054)	(184,767)
Cash and cash equivalents and restricted cash, beginning of period	600,941	245,769
Cash and cash equivalents and restricted cash, end of period	39,887	61,002
Supplemental disclosure of cash flow information
Cash paid for interest	5	2,399
Cash paid for income taxes	41,118	48,408
Supplemental disclosure of non-cash investing and financing activities
Purchases of property and equipment included in accounts payable	1,827	1,802
ROU Asset and Liability recognition	$ 17,434	$ 3,775