CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income (loss)	$ 15,623	$ (7,186)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	82,738	99,243
Cash distributions from wireless partnerships in less than current earnings	(307)	(1,118)
Pension and post-retirement contributions in excess of expense	(8,571)	(5,980)
Stock-based compensation expense	890	1,498
Amortization of deferred financing costs	1,196	1,213
Gain on extinguishment of debt	(234)
Other, net	(4,138)	397
Changes in operating assets and liabilities, net of acquired businesses:
Accounts receivable, net	1,204	810
Income tax receivable	5,024	(3,227)
Prepaid expenses and other assets	(1,826)	(2,419)
Accounts payable	(11,034)	(6,497)
Accrued expenses and other liabilities	4,425	(1,737)
Net cash provided by operating activities	84,990	74,997
Cash flows from investing activities:
Purchases of property, plant and equipment, net	(42,389)	(53,394)
Proceeds from sale of assets	2,187	865
Distributions from investments	426	329
Net cash used in investing activities	(39,776)	(52,200)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	10,000	51,000
Payment of finance lease obligations	(2,674)	(3,507)
Payment on long-term debt	(46,588)	(45,588)
Repurchase of senior notes	(4,208)
Dividends on common stock		(27,577)
Net cash used in financing activities	(43,470)	(25,672)
Change in cash and cash equivalents	1,744	(2,875)
Cash and cash equivalents at beginning of period	12,395	9,599
Cash and cash equivalents at end of period	$ 14,139	$ 6,724