Summary of Significant Accounting Policies (Schedule of Tax Effects of Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), Before-Tax Amount	$ 7,850	$ 6,073	$ 10,644
Total other comprehensive income (loss), Tax Expense	(1,556)	(2,026)	(2,395)
TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAX	6,294	4,047	8,249
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), Before-Tax Amount	6,310	7,825	9,645
Total other comprehensive income (loss), Tax Expense	(1,556)	(2,026)	(2,395)
TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAX	4,754	5,799	7,250
Defined benefit pension plan adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), Before-Tax Amount	2,079	7,906	4,477
Total other comprehensive income (loss), Tax Expense	(570)	(2,124)	(1,194)
TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAX	1,509	5,782	3,283
Foreign currency translation adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), Before-Tax Amount	2,273	(4,523)	961
Total other comprehensive income (loss), Tax Expense	(274)	648	(126)
TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAX	1,999	(3,875)	835
Unrealized gain in fair value of investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), Before-Tax Amount	3,498	2,690	5,206
Total other comprehensive income (loss), Tax Expense	(712)	(550)	(1,075)
TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAX	2,786	2,140	4,131
Noncontrolling Interests
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), Before-Tax Amount	1,540	(1,752)	999
Total other comprehensive income (loss), Tax Expense	0	0	0
TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAX	$ 1,540	$ (1,752)	$ 999