Other Non-Operating Income (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Other Nonoperating Income (Expense) [Abstract]
Gain on sale of businesses	$ 3,483	$ 12,232	$ 4,358	$ 13,232
Foreign currency (loss) gain, net	(1,700)	1,604	(1,083)	100
Impairment of cost method investments	(338)	0	(744)	0
Gain on sale of investment in affiliate	15	0	15	15
Gain on sale of cost method investments	0	46	6	831
Gain on cost method investments	0	1,273	0	3,104
Other gain, net	331	639	886	1,595
Total Other Non-Operating Income	1,791	15,794	3,438	18,877
Equity Securities, FV-NI, Realized Gain (Loss)	$ 102	$ 9,132	$ 102	$ 5,475