CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Current assets
Cash and cash equivalents	$ 255,445	$ 199,448
Short-term marketable securities	386,712	366,474
Accounts receivable (net of allowances of $11,406 in 2025 and $12,118 in 2024)	290,823	249,530
Prepaid expenses	60,017	49,869
Other current assets	35,070	71,001
Total current assets	1,028,067	936,322
Long-term marketable securities	525,695	345,946
Property, plant and equipment, net	462,365	488,816
Goodwill	409,212	412,173
Intangible assets, net	229,376	258,006
Deferred income taxes	72,830	111,397
Right of use assets	33,429	32,315
Pension assets	75,937	71,303
Miscellaneous assets	160,179	185,201
Total assets	2,997,090	2,841,479
Current liabilities
Accounts payable	135,623	123,606
Accrued payroll and other related liabilities	186,129	177,859
Unexpired subscriptions revenue	207,623	187,082
Accrued expenses and other	137,320	124,982
Total current liabilities	666,695	613,529
Other liabilities
Pension and postretirement benefits obligation	210,838	214,641
Other	78,194	86,100
Total other liabilities	289,032	300,741
Common stock of $.10 par value:
Additional paid-in capital	411,532	356,450
Retained earnings	2,550,539	2,325,142
Common stock held in treasury, at cost	(572,878)	(406,446)
Accumulated other comprehensive loss, net of income taxes:
Foreign currency translation adjustments	(4,883)	(2,762)
Funded status of benefit plans	(363,262)	(363,874)
Unrealized gain on available-for-sale securities	2,339	830
Total accumulated other comprehensive loss, net of income taxes	(365,806)	(365,806)
Total stockholders’ equity	2,041,363	1,927,209
Total liabilities and stockholders’ equity	2,997,090	2,841,479
Class A Common Stock
Common stock of $.10 par value:
Common stock value	17,898	17,791
Class B Common Stock
Common stock of $.10 par value:
Common stock value	$ 78	$ 78