Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current Assets
Cash and cash equivalents	$ 265,159	$ 390,014
Restricted cash	11,576	17,552
Investments in marketable equity securities and other investments	517,927	557,153
Accounts receivable, net	589,645	620,319
Income taxes receivable	0	23,901
Inventories and contracts in progress	73,696	60,612
Other current assets	77,864	66,253
Total Current Assets	1,535,867	1,735,804
Property, Plant and Equipment, Net	271,560	259,358
Investments in Affiliates	142,756	128,590
Goodwill, Net	1,310,075	1,299,710
Indefinite-Lived Intangible Assets	114,752	102,195
Amortized Intangible Assets, Net	260,055	237,976
Prepaid Pension Cost	1,106,162	1,056,777
Deferred Income Taxes	15,367	15,367
Deferred Charges and Other Assets	117,149	102,046
Total Assets	4,873,743	4,937,823
Current Liabilities
Accounts payable and accrued liabilities	448,240	526,323
Deferred revenue	335,086	339,454
Income taxes payable	7,235	6,109
Current portion of long-term debt	6,568	6,726
Dividends declared	7,071	0
Total Current Liabilities	804,200	878,612
Postretirement Benefits Other Than Pensions	21,607	20,865
Accrued Compensation and Related Benefits	179,887	193,024
Other Liabilities	59,264	65,977
Deferred Income Taxes	355,662	362,701
Mandatorily Redeemable Noncontrolling Interest	0	10,331
Long-Term Debt	473,060	486,561
Total Liabilities	1,893,680	2,018,071
Redeemable Noncontrolling Interest	4,706	4,607
Preferred Stock	0	0
Common Stockholders’ Equity
Common stock	20,000	20,000
Capital in excess of par value	376,412	370,700
Retained earnings	6,179,948	5,791,724
Accumulated other comprehensive income (loss), net of tax
Cumulative foreign currency translation adjustment	(16,133)	6,314
Unrealized gain on available-for-sale securities	0	194,889
Unrealized gain on pensions and other postretirement plans	328,885	334,536
Cash flow hedge	303	(184)
Cost of Class B common stock held in treasury	(3,914,058)	(3,802,834)
Total Equity	2,975,357	2,915,145
Total Liabilities and Equity	$ 4,873,743	$ 4,937,823