CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
OPERATING ACTIVITIES:
Net loss	$ (35,901)	$ (11,073)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	17,442	13,539
Net amortization of deferred financing costs (net of original issue discount and debt premium)	1,008	1,002
Net deferred taxes (benefit) and other	(8,442)	(4,039)
Provision for bad debts	471	49
Net (gain) loss on sale or disposal	(12,404)	(2,458)
Non-cash stock-based compensation expense	1,949	2,698
Deferred compensation	292	(1,725)
Impairment loss	5,050	1,521
Change in fair value of contingent consideration	0	282
Changes in assets and liabilities (net of effects of acquisitions, and dispositions):
Accounts receivable	40,454	48,135
Prepaid expenses and deposits	(17,974)	(18,574)
Accounts payable and accrued liabilities	(9,134)	(9,202)
Accrued interest expense	(1,660)	(1,454)
Other long-term liabilities	(3,773)	(3,481)
Net cash (used in) provided by operating activities	(22,622)	15,220
INVESTING ACTIVITIES:
Additions to property, equipment and software	(13,618)	(14,522)
Proceeds from sale of property, equipment, intangibles and other assets	16,866	2,464
Net cash provided by (used in) investing activities	3,248	(12,058)
FINANCING ACTIVITIES:
Payments of long-term debt	(10)	0
Payments of revolving senior debt	0	(22,727)
Proceeds from issuance of employee stock plan	0	177
Purchase of vested employee restricted stock units	(127)	(1,839)
Payment of dividend equivalents on vested restricted stock units	(60)	(174)
Net cash (used in) provided by financing activities	(197)	(24,563)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(19,571)	(21,401)
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	103,344	59,439
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	83,773	38,038
Cash paid (received) during the period for:
Interest	32,692	23,616
Income taxes	$ 239	$ (15,201)