CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
OPERATING ACTIVITIES:
Net loss	$ (161,705)	$ (11,846)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	35,017	29,110
Net amortization of deferred financing costs (net of original issue discount and debt premium)	2,929	2,027
Net deferred taxes (benefit) and other	(53,030)	(3,860)
Provision for bad debts	1,271	94
Net (gain) on sale or disposal	(22,280)	(2,563)
Non-cash stock-based compensation expense	2,998	5,179
Deferred compensation loss (gain)	1,257	(4,806)
Impairment loss	130,405	3,291
Change in fair value of contingent consideration	0	(7,704)
Changes in assets and liabilities (net of effects of acquisitions and dispositions):
Accounts receivable	21,222	13,626
Prepaid expenses and deposits	1,354	1,928
Other assets	(830)	926
Accounts payable and accrued liabilities	(17,275)	(17,407)
Accrued interest expense	(402)	(43)
Operating leases	(4,710)	639
Other long-term liabilities	(5,429)	(9,019)
Net cash (used in) provided by operating activities	(69,208)	(428)
INVESTING ACTIVITIES:
Additions to property, equipment and software	(25,024)	(46,904)
Proceeds from sale of property, equipment, intangibles and other assets	32,724	2,960
Net cash provided by (used in) investing activities	7,700	(43,944)
FINANCING ACTIVITIES:
Borrowing under the revolving senior debt	39,000	60,000
Payments of revolving senior debt	0	(22,727)
Retirement of notes	0	(10,000)
Proceeds from issuance of employee stock plan	0	309
Purchase of vested employee restricted stock units	(129)	(1,890)
Payment of dividends on common stock	(39)	0
Payment of dividend equivalents on vested restricted stock units	0	(178)
Treasury stock	(1)	0
Net cash (used in) provided by financing activities	38,831	25,514
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(22,677)	(18,858)
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	103,344	59,439
CASH AND CASH EQUIVALENTS, END OF PERIOD	80,667	40,581
Cash paid (received) during the period for:
Interest	63,876	44,437
Income taxes	$ 1,687	$ (14,792)