Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 75,255	$ 102,860
Accounts receivable, less allowances (2022 - $5,863; 2021 - $5,625)	272,345	262,257
Inventories	255,117	239,655
Prepaid expenses and other current assets	83,795	75,437
Total current assets	686,512	680,209
Deferred income taxes	17,883	21,976
Property, plant and equipment	909,281	904,895
Less accumulated depreciation	(573,995)	(563,433)
Property, plant and equipment, net	335,286	341,462
Goodwill	945,407	955,370
Other intangible assets, net	486,835	500,246
Other assets	83,432	77,557
Total assets	2,555,355	2,576,820
Current liabilities
Notes and overdrafts payable	978	1,900
Accounts payable	134,816	131,076
Accrued liabilities	144,852	175,583
Long-term debt - current	1,702	1,835
Total current liabilities	282,348	310,394
Long-term debt	594,976	599,932
Accrued retirement benefits	75,684	76,784
Deferred income taxes	65,557	66,704
Long-term tax liability	52,114	52,114
Other liabilities	43,646	42,126
Commitments and contingencies (Note 15)
Stockholders' equity
Common stock - par value $0.01 per share Authorized: 150,000,000 shares Issued: at par value (2022 - 64,356,438 shares; 2021 - 64,343,582 shares)	644	643
Additional paid-in capital	519,227	516,562
Treasury stock, at cost (2022 - 13,659,544 shares; 2021 - 13,658,483 shares)	(523,691)	(523,642)
Retained earnings	1,599,278	1,587,041
Accumulated other non-owner changes to equity	(154,428)	(151,838)
Total stockholders' equity	1,441,030	1,428,766
Total liabilities and stockholders' equity	$ 2,555,355	$ 2,576,820