CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income	$ 286,235	$ 405,665	$ 215,046
Adjustments to reconcile net income to net cash flow from operating activities:
Depreciation	60,525	55,949	74,637
Amortization of intangible assets	50,104	30,838	61,870
Stock-based compensation	20,146	12,531	17,098
Company stock 401(k) contribution	9,558	0	0
Loss on sale of CareerBuilder	0	0	342,900
(Gains) losses on assets	(7,402)	(4,991)	19,803
Provision (benefit) for deferred income taxes	22,064	17,258	(296,820)
Equity income in unconsolidated investees, net	(10,149)	(13,792)	(10,462)
Changes in operating assets and liabilities, net of acquisitions:
(Increase) decrease in trade receivables	(86,245)	(5,351)	14,541
Increase (decrease) in accounts payable	(29,526)	29,357	(21,474)
Increase (decrease) in interest and taxes payable	(8,284)	22,895	(29,977)
Increase (decrease) in deferred revenue	1,007	898	(3,888)
Pension contributions, net of expense	(19,447)	(42,015)	(13,276)
Spectrum channel share proceeds	0	0	32,588
Changes in other assets and liabilities, net	8,887	17,967	(13,157)
Net cash flows from operating activities	297,473	527,209	389,429
Cash flows from investing activities:
Purchase of property and equipment	(88,356)	(65,230)	(76,886)
Reimbursement from spectrum repacking	16,974	7,400	0
Payments for acquisitions of businesses, net of cash acquired	(1,514,183)	(328,433)	0
Payments for investments	(4,986)	(11,677)	(6,405)
Proceeds from investments	4,698	7,189	37,880
Proceeds from sale of businesses and assets	22,383	16,335	205,188
Proceeds from insurance settlements	0	0	16,454
Net cash (used for) provided by investing activities	(1,563,470)	(374,416)	176,231
Cash flows from by financing activities:
Proceeds from (payments of) borrowings under revolving credit facilities, net	853,000	50,000
Proceeds from (payments of) borrowings under revolving credit facilities, net			(635,000)
Proceeds from Cars.com borrowings	0	0	675,000
Proceeds from borrowings	1,100,000	0	0
Debt repayments	(710,000)	(121,146)	(412,246)
Payments for debt issuance and premiums for early redemption costs	(22,018)	(5,269)	(9,795)
Dividends paid	(60,624)	(60,290)	(90,170)
Repurchases of common stock	0	(5,831)	(23,480)
Net settlement of stock for tax withholding and proceeds from stock option exercises	(819)	(2,436)	(3,932)
Distributions to noncontrolling membership interests	0	0	(22,980)
Cash transferred to the Cars.com business	0	0	(20,133)
Net cash provided by (used for) financing activities	1,159,539	(144,972)	(542,736)
(Decrease) increase in cash, cash equivalents and restricted cash	(106,458)	7,821	22,924
Cash, cash equivalents and restricted cash from continuing operations, beginning of year	135,862	128,041	44,076
Cash, cash equivalents and restricted cash from discontinued operations, beginning of year	0	0	61,041
Balance of cash, cash equivalents and restricted cash at beginning of year	135,862	128,041	105,117
Balance of cash, cash equivalents and restricted cash at end of year	$ 29,404	$ 135,862	$ 128,041