Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows provided by operating activities:
Net income	$ 71,385	$ 73,243
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation	2,656	2,636
Depreciation and amortization	4,989	4,414
Amortization of intangible assets	2,105	1,686
Deferred income taxes	1,688	2,855
Loss on transaction		4,088
Other, including fixed asset impairments	289	(186)
Changes in assets and liabilities:
Accounts receivable and interest receivable from university partners	(28,451)	(24,722)
Prepaid expenses and other	(6,742)	(3,425)
Right-of-use assets and lease liabilities	544	80
Accounts payable	3,957	(4,903)
Accrued liabilities	5,972	805
Income taxes receivable/payable	19,174	14,643
Deferred revenue	8,153	5,123
Net cash provided by operating activities	85,719	76,337
Cash flows used in investing activities:
Capital expenditures	(6,085)	(4,586)
Amortization of intangible assets	(56)	(157)
Acquisition, net of cash acquired		(361,184)
Funding to GCU for capital expenditures		(29,905)
Purchases of investments		(1,772)
Proceeds from sale or maturity of investments	4,263	56,752
Net cash used in investing activities	(1,878)	(340,852)
Cash flows (used in) provided by financing activities:
Principal payments on notes payable	(8,286)	(59,850)
Debt issuance costs		(2,385)
Proceeds from notes payable		243,750
Net borrowings from revolving line of credit		6,250
Repurchase of common shares including shares withheld in lieu of income taxes	(65,706)	(18,127)
Net proceeds from exercise of stock options	72	1,631
Net cash (used in) provided by financing activities	(73,920)	171,269
Net increase (decrease) in cash and cash equivalents and restricted cash	9,921	(93,246)
Cash and cash equivalents and restricted cash, beginning of period	122,572	182,013
Cash and cash equivalents and restricted cash, end of period	132,493	88,767
Supplemental disclosure of cash flow information
Cash paid for interest	1,546	1,667
Cash paid for income taxes	250	420
Supplemental disclosure of non-cash investing and financing activities
Purchases of property and equipment included in accounts payable	899	736
Lease adoption - recognition of right of use assets and lease liabilities		$ 498
Allowance for credit losses of $5,000, net of taxes of $1,168 from adoption of ASU 2016-13	3,832
ROU Asset and Liability recognition	$ 6,775