Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Operating activities
Net income (loss)	$ 3,149	$ (60,300)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	15,440	22,735
Amortization of debt issuance costs	1,123	1,240
Stock-based compensation	5,502	6,025
Equity investment loss	4,407	5,233
Deferred income taxes	816	(13,311)
Loss on disposals of long-lived assets	235	17
Impairment of goodwill and intangible assets	0	64,000
Changes in operating assets and liabilities:
Accounts receivable, net of allowance for bad debt	8,325	13,307
Prepaid expenses	(4,651)	(3,343)
Income tax receivable/payable	(4,886)	(1,302)
Operating leases, net	2,997	3,003
Other assets	(374)	(351)
Accounts payable	1,797	4,168
Accrued compensation and benefits	5,388	3,635
Accrued liabilities	4,516	(1,582)
Deferred revenue and student deposits	3,489	5,483
Net cash provided by operating activities	47,273	48,657
Investing activities
Capital expenditures	(17,728)	(9,505)
Proceeds from the sale of real property	0	123
Net cash used in investing activities	(17,728)	(9,382)
Financing activities
Cash paid for repurchase of common stock	(4,225)	(9,028)
Cash received from exercise of stock options	67	0
Preferred stock dividends paid	(4,597)	(4,466)
Cash paid for principal on borrowings and finance leases	(2,883)	(85)
Net cash used in financing activities	(11,638)	(13,579)
Net increase in cash, cash equivalents, and restricted cash	17,907	25,696
Cash, cash equivalents, and restricted cash at beginning of period	144,342	129,458
Cash, cash equivalents, and restricted cash at end of period	162,249	155,154
Supplemental disclosure of cash flow information
Interest paid	8,183	7,863
Income taxes paid	$ 6,023	$ 1,551