Other Non-Operating Income (Details 1) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Other Nonoperating Income (Expense) [Abstract]
Gain on sale of businesses	$ 1,136	$ 1,376	$ 14,368	$ 3,074
Gain on cost method investments	0	560	3,104	560
Foreign currency gain (loss), net	1,720	(448)	1,820	(1,973)
Gain on sale of cost method investments	127	8	958	1,032
Gain on sale of investments in affiliates	0	0	15	604
Other gain, net	598	862	2,193	3,113
Total Other Non-Operating Income	3,581	2,358	22,458	6,410
Equity Securities, FV-NI, Realized Gain (Loss)	$ 0	$ (137)	$ 5,475	$ (10,742)