CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net income	$ 16,931	$ 7,605
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization	66,089	64,870
Provision for doubtful accounts	4,452	3,796
Amortization of debt discount and debt issuance costs	395	420
Stock-based compensation	4,608	4,881
Deferred income taxes	(6,078)	(6,287)
Loss on equity investments	3,360	2,131
Loss on disposition of long-lived assets	60	321
Unrealized loss on foreign currency	449	233
Other non-cash activity		28
Changes in operating assets and liabilities, excluding the effects of acquisitions and dispositions:
Accounts receivable	(12,189)	(10,193)
Materials and supplies, prepayments, and other current assets	(14,849)	(5,507)
Prepaid income taxes	2,038	5,158
Accounts payable and accrued liabilities, advance payments and deposits and other current liabilities	7,382	6,324
Accrued taxes	(1,418)	(19,047)
Other assets	1,057	(2,041)
Other liabilities	(696)	4,155
Net cash provided by operating activities	71,591	56,847
Cash flows from investing activities:
Capital expenditures	(50,662)	(49,486)
Purchase of spectrum, including deposits	(20,396)
Purchases of strategic investments	(2,768)	(10,285)
Proceeds from strategic investments	11,969
Purchase of short-term investments	(116)	(8,028)
Proceeds from sale of short-term investments		5,141
Net cash used in investing activities	(61,973)	(62,658)
Cash flows from financing activities:
Dividends paid on common stock	(8,166)	(8,160)
Distributions to non-controlling interests	(6,503)	(5,760)
Payment of debt issuance costs	(1,096)	(1,340)
Principal repayments of term loan	(2,814)	(2,825)
Purchases of common stock - share based compensation	(1,733)	(1,607)
Purchases of common stock - share buyback	(6,589)	(162)
Repurchases of non-controlling interests	(8,763)	(1,353)
Investments made by minority shareholders in consolidated affiliates		488
Net cash used in financing activities	(35,664)	(20,719)
Effect of foreign currency exchange rates on cash and cash equivalents	(87)	(26)
Net change in cash, cash equivalents, and restricted cash	(26,133)	(26,556)
Total cash, cash equivalents, and restricted cash, beginning of period	162,358	192,907
Total cash, cash equivalents, and restricted cash, end of period	136,225	166,351
Noncash investing activity:
Purchases of property, plant and equipment included in accounts payable and accrued expenses	$ 15,097	$ 7,419