CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities
Net income	$ 405,665	$ 215,046	$ 487,999
Adjustments to reconcile net income to operating cash flows:
Depreciation	55,949	74,637	89,531
Amortization of intangible assets	30,838	61,870	114,959
Stock-based compensation	12,531	17,098	17,590
Loss on sale of CareerBuilder	0	342,900	0
Provision (benefit) for deferred income taxes	17,258	(296,820)	16,535
Equity (income) loss in unconsolidated investees, net	(13,792)	(10,462)	7,170
Other, including (gains) losses on sale of assets and impairments	(4,991)	19,803	42,067
Changes in operating assets and liabilities:
(Increase) decrease in trade receivables	(5,351)	14,541	(32,046)
Increase (decrease) in accounts payable	29,357	(21,474)	(1,506)
Increase (decrease) in interest and taxes payable	22,895	(29,977)	(7,771)
Increase (decrease) in deferred revenue	898	(3,888)	(20,004)
Pension (contributions), net of expense	(42,015)	(13,276)	3,257
Spectrum channel share proceeds	0	32,588	0
Changes in other assets and liabilities, net	17,967	(13,157)	(39,080)
Net cash flows from operating activities	527,209	389,429	678,701
Cash flows from investing activities
Purchase of property and equipment	(65,230)	(76,886)	(94,796)
Reimbursement from spectrum repacking	7,400	0	0
Payments for acquisitions, net of cash acquired	(328,433)	0	(206,078)
Payments for investments	(11,677)	(6,405)	(20,797)
Proceeds from investments	7,189	37,880	40,409
Proceeds from sale of businesses and assets	16,335	205,188	8,441
Proceeds from insurance settlements	0	16,454	0
Net cash (used for) provided by investing activities	(374,416)	176,231	(272,821)
Cash flows from financing activities
Proceeds from (payments of) borrowings under revolving credit facilities, net	50,000	(635,000)	(85,000)
Proceeds from Cars.com borrowings	0	675,000	0
Proceeds from borrowings	0	0	300,000
Debt repayments	(121,146)	(412,246)	(352,590)
Payments for debt issuance and premiums for early redemption costs	(5,269)	(9,795)	(1,684)
Dividends paid	(60,290)	(90,170)	(121,639)
Repurchases of common stock	(5,831)	(23,480)	(161,891)
Net settlement of stock for tax withholding and proceeds from stock option exercises	(2,436)	(3,932)	(20,352)
Distributions to noncontrolling membership interests	0	(22,980)	(18,840)
Cash transferred to the Cars.com business	0	(20,133)	0
Deferred payments for acquisitions	0	0	(437)
Net cash used for financing activities	(144,972)	(542,736)	(462,433)
Increase (decrease) in cash, cash equivalents and restricted cash	7,821	22,924	(56,553)
Cash, cash equivalents and restricted cash from continuing operations, beginning of year	128,041	44,076	58,566
Cash, cash equivalents and restricted cash from discontinued operations, beginning of year	0	61,041	103,104
Balance of cash, cash equivalents and restricted cash at beginning of year	128,041	105,117	161,670
Cash, cash equivalents and restricted cash from continuing operations, end of year	135,862	128,041	44,076
Cash, cash equivalents and restricted cash from discontinued operations, end of year	0	0	61,041
Balance of cash, cash equivalents and restricted cash at end of year	$ 135,862	$ 128,041	$ 105,117