Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Mar. 29, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 609,402	$ 590,286
Short-term investments	10,197	16,130
Accounts receivable, net	427,634	401,901
Inventories:
Finished goods	177,202	175,176
Work in process	314,752	296,393
Raw materials	220,484	217,812
Total inventories	712,438	689,381
Prepaid expenses and other current assets	215,891	217,809
Total current assets	1,975,562	1,915,507
Property and equipment, at cost:
Land	84,827	84,124
Buildings and improvements	784,132	766,058
Machinery and equipment	3,336,823	3,259,213
Construction in progress	377,095	367,564
Allowance for depreciation	(3,008,308)	(2,931,221)
Property and equipment, net	1,574,569	1,545,738
Right of use assets	117,445	117,953
Deferred income taxes	162,126	159,769
Goodwill	179,388	179,005
Other intangible assets, net	85,962	87,223
Other assets	105,190	105,501
Total assets	4,200,242	4,110,696
Current liabilities:
Trade accounts payable	211,378	216,313
Payroll and related expenses	153,201	137,101
Lease liabilities	26,179	25,901
Other accrued expenses	262,649	264,471
Income taxes	51,994	64,562
Total current liabilities	705,401	708,348
Long-term debt less current portion	988,235	905,019
Deferred income taxes	99,777	96,363
Long-term lease liabilities	93,150	94,218
Other liabilities	103,968	104,086
Accrued pension and other postretirement costs	177,579	173,700
Total liabilities	2,168,110	2,081,734
Equity
Common stock	13,411	13,361
Class B convertible common stock	1,210	1,210
Capital in excess of par value	1,308,366	1,306,245
Retained earnings	937,833	955,500
Treasury stock (at cost)	(224,600)	(212,062)
Accumulated other comprehensive income (loss)	(4,088)	(35,292)
Total equity	2,032,132	2,028,962
Total liabilities and equity	$ 4,200,242	$ 4,110,696