Other Non-Operating Income (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other Nonoperating Income (Expense) [Abstract]
Net gain on sale of businesses	$ 15,618	$ 22,679	$ 3,789
Net gain on cost method investments	3,104	6,883	11,756
Foreign currency loss, net	(1,141)	(2,023)	(179)
Gain on sale of cost method investments	958	3,294	9,355
Impairment of cost method investments	(500)	(1,305)	0
Gain on sale of investment in affiliates	15	604	0
Other, net	1,040	3,368	7,833
Total Other Non-Operating Income	$ 19,094	$ 33,500	$ 32,554