Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 153,934	$ 147,699
Adjustments to reconcile net income to net cash flow from operating activities:
Depreciation and amortization	46,962	42,076
Stock-based compensation	9,442	7,967
Company stock 401(k) contribution	3,244	0
Gains on assets	(11,725)	(7,406)
Equity income from unconsolidated investments, net	(11,413)	(14,309)
Pension contributions, net of expense	(3,812)	(31,158)
Change in other assets and liabilities, net	(69,781)	9,172
Net cash flow from operating activities	116,851	154,041
Cash flows from investing activities:
Purchase of property and equipment	(37,684)	(20,864)
Reimbursements from spectrum repacking	8,439	2,025
Payments for acquisitions of businesses, net of cash acquired	(185,926)	(325,902)
Payments for investments	(3,553)	(4,479)
Proceeds from investments	955	1,224
Proceeds from sale of assets	20,064	16,126
Net cash flow used for investing activities	(197,705)	(331,870)
Cash flows from financing activities:
Proceeds from borrowings under revolving credit facilities, net	55,000	186,000
Debt repayments	(50,000)	(66,123)
Payment of debt issuance costs	0	(5,269)
Dividends paid	(30,294)	(30,137)
Repurchases of common stock	0	(5,831)
Other, net	(446)	(4,349)
Net cash flow (used for) provided by financing activities	(25,740)	74,291
(Decrease) in cash, cash equivalents and restricted cash	(106,594)	(103,538)
Balance of cash, cash equivalents and restricted cash, beginning of period	135,862	128,041
Balance of cash, cash equivalents and restricted cash, end of period	$ 29,268	$ 24,503