Taxes on Income - Deferred Tax Balances (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Retirement benefits	$ 11,860,000	$ 15,237,000
Allowance for doubtful accounts	2,155,000	2,316,000
Insurance and litigation reserves	675,000	842,000
Performance incentives	2,881,000	5,914,000
Equity-based compensation	1,920,000	1,282,000
Prepaid expense	460,000	756,000
Operating loss carryforward	18,544,000	16,693,000
Foreign tax credit and other credits	16,285,000	24,873,000
Interest	9,940,000	16,812,000
Restructuring reserves	631,000	1,121,000
Right of use lease assets	8,322,000	9,346,000
Inventory reserves	2,941,000	2,225,000
Research and development	8,832,000	7,974,000
Other	2,846,000	3,005,000
Total deferred tax assets, gross	88,292,000	108,396,000
Valuation allowance	(17,400,000)	(21,511,000)	$ (13,834,000)	$ (7,520,000)
Total deferred tax assets, net	70,892,000	86,885,000
Depreciation	11,580,000	15,473,000
Foreign pension and other	2,332,000	1,807,000
Intangibles	197,066,000	222,794,000
Lease liabilities	8,421,000	9,151,000
Outside basis in equity investment	5,999,000	7,938,000
Unremitted earnings	8,381,000	5,919,000
Total deferred tax liabilities	$ 233,779,000	$ 263,082,000