Taxes on Income - Rate Reconciliation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Income tax provision at the federal statutory tax rate	$ 30,868,000	$ 5,699,000	$ 6,070,000
Unremitted Earnings	(1,841,000)	2,308,000	(4,383,000)
Tax law changes / reform	1,955,000	(1,059,000)	(416,000)
Sub part F / Global intangible low taxed income	10,479,000	5,140,000	574,000
Pension Settlement	0	(2,247,000)	0
Foreign derived intangible income	(8,698,000)	(7,339,000)	(1,699,000)
Non-deductible acquisition expenses	129,000	131,000	1,743,000
Withholding taxes	6,584,000	7,809,000	8,621,000
Share-based compensation	600,000	335,000	(540,000)
Foreign tax rate differential	3,090,000	1,139,000	1,444,000
Excess Foreign Tax Credit Utilization	(14,725,000)	(4,699,000)	(3,787,000)
Research and development credit	(1,685,000)	(1,018,000)	(830,000)
Uncertain tax positions	519,000	1,990,000	899,000
State income tax provisions, net	(1,446,000)	(2,245,000)	(117,000)
Non-deductible meals and entertainment	426,000	290,000	318,000
Intercompany transfer of intellectual property	4,347,000	(4,384,000)	(5,318,000)
Miscellaneous items, net	655,000	(2,530,000)	(495,000)
Income Tax Expense (Benefit), Total	$ 34,939,000	$ (5,296,000)	$ 2,084,000