CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net loss	$ (11,435)	$ (5,037)
Adjustments to reconcile net loss to net cash flows provided by operating activities:
Depreciation and amortization	106,991	100,421
Amortization of intangibles from acquisitions	9,514	9,744
Provision for doubtful accounts	4,014	4,969
Amortization of debt discount and debt issuance costs	1,806	1,512
Loss on disposition of long-lived assets	410	3,876
Stock-based compensation	6,473	5,696
Deferred income taxes	(9,452)	(6,619)
Loss on pension settlement	369	1,725
Gain on investments	(2,752)	(5,617)
Changes in operating assets and liabilities, excluding the effects of acquisitions and dispositions:
Accounts receivable	(2,881)	(1,401)
Customer receivable	1,185	(4,399)
Prepaid income taxes	739	6,206
Accrued taxes	2,863	2,163
Materials and supplies, prepayments, and other current assets	424	(16,358)
Accounts payable and accrued liabilities, advance payments and deposits and other current liabilities	(6,769)	(4,724)
Other assets	(4,683)	(4,016)
Other liabilities	(7,332)	(9,166)
Net cash provided by operating activities	89,484	78,975
Cash flows from investing activities:
Capital expenditures	(126,640)	(109,944)
Government capital programs - Amounts disbursed	(14,261)	(4,015)
Government capital programs - Amounts received	16,065	2,668
Purchases of strategic investments	(1,055)	(2,750)
Sale of businesses, net of transferred cash of $0		1,835
Spectrum deposit refund		1,136
Proceeds from strategic investments		15,745
Acquisition of businesses	1,314
Proceeds from sale of assets		683
Net cash used in investing activities	(124,577)	(94,642)
Cash flows from financing activities:
Dividends paid on common stock	(9,918)	(8,028)
Distributions to noncontrolling interests	(1,447)	(1,375)
Payment of debt issuance costs	(3,708)
Finance lease payments	(932)	(820)
Term loan - repayments	(3,532)	(953)
Term loan - borrowings	130,000	711
Revolving credit facility - borrowings	126,893	68,000
Revolving credit facility - repayments	(174,292)	(45,000)
Proceeds from customer receivable credit facility	4,300	12,225
Repayment of customer receivable credit facility	(4,998)	(3,543)
Purchases of common stock - stock- based compensation	(1,473)	(1,169)
Purchases of common stock - share repurchase plan	(11,679)	(942)
Investments made by minority shareholders in consolidated affiliates		22
Repurchases of noncontrolling interests	(762)	(4,631)
Contingent consideration paid for business acquisition		(1,718)
Net cash provided by financing activities	48,452	12,779
Net change in cash, cash equivalents, and restricted cash	13,359	(2,888)
Total cash, cash equivalents, and restricted cash, beginning of period	59,728	80,697
Total cash, cash equivalents, and restricted cash, end of period	73,087	77,809
Noncash investing activity:
Amounts accrued for reimbursable capital expenditures from government capital programs	25,244
Amounts accrued for non-reimbursable capital expenditures	$ 19,107	$ 21,491