Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 72,278	$ 102,860
Accounts receivable, less allowances (2022 - $5,726; 2021 - $5,625)	281,773	262,257
Inventories	260,633	239,655
Prepaid expenses and other current assets	75,739	75,437
Total current assets	690,423	680,209
Deferred income taxes	18,682	21,976
Property, plant and equipment	890,966	904,895
Less accumulated depreciation	(570,792)	(563,433)
Property, plant and equipment, net	320,174	341,462
Goodwill	827,131	955,370
Other intangible assets, net	461,161	500,246
Other assets	83,525	77,557
Total assets	2,401,096	2,576,820
Current liabilities
Notes and overdrafts payable	4	1,900
Accounts payable	137,561	131,076
Accrued liabilities	145,795	175,583
Long-term debt - current	1,502	1,835
Total current liabilities	284,862	310,394
Long-term debt	582,537	599,932
Accrued retirement benefits	74,309	76,784
Deferred income taxes	60,100	66,704
Long-term tax liability	39,086	52,114
Other liabilities	40,108	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 - 64,379,072 shares; 2021 - 64,343,582 shares)	644	643
Additional paid-in capital	522,775	516,562
Treasury stock, at cost (2022 - 13,862,554 shares; 2021 - 13,658,483 shares)	(530,518)	(523,642)
Retained earnings	1,551,583	1,587,041
Accumulated other non-owner changes to equity	(224,390)	(151,838)
Total stockholders' equity	1,320,094	1,428,766
Total liabilities and stockholders' equity	$ 2,401,096	$ 2,576,820