Income Taxes (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Line Items]
Capital loss carry-forwards	$ 2,454,000	$ 3,374,000
Foreign provision for income taxes	100,161,000	117,212,000	$ 108,714,000
Undistributed earnings	685,650,000
Unrecognized deferred tax liability related to temporary differences	13,700,000
Earnings retained by subsidiaries and equity accounted investments	702,650,000	645,828,000	500,430,000
Gross unrecognized tax benefits	18,859,000	20,298,000	$ 20,232,000
Unrecognized tax benefits that would impact effective tax rate	8,570,000	9,248,000
Accrued interest and penalties	3,896,000	4,003,000
Capital Loss Carryforward [Member]
Income Tax Disclosure [Line Items]
Capital loss carry-forwards	$ 82,211,000	$ 43,476,000