Organization and Basis of Presentation - Schedule of Components of Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Equity securities:
Equity securities, carrying value	$ 84,116	$ 69,794
Total - Marketable securities
Available for sale debt securities:
Marketable securities, amortized cost	61,432	51,840
Marketable securities, unrealized gain (loss)	22,684	17,954
Marketable securities, carrying value	84,116	69,794
Investment funds - debt securities
Equity securities:
Equity securities, amortized cost	2,677	2,645
Equity securities, unrealized gain (loss)	6	(67)
Equity securities, carrying value	2,683	2,578
Common stock, preferred stock and stock funds
Equity securities:
Equity securities, amortized cost	48,738	49,195
Equity securities, unrealized gain (loss)	22,494	18,021
Equity securities, carrying value	71,232	$ 67,216
U.S. treasury and agency securities
Available for sale debt securities:
Debt securities, amortized cost	5,002
Debt securities, unrealized gain (loss)	77
Debt securities, carrying value	5,079
Corporate debt securities
Available for sale debt securities:
Debt securities, amortized cost	4,708
Debt securities, unrealized gain (loss)	99
Debt securities, carrying value	4,807
Municipal debt securities
Available for sale debt securities:
Debt securities, amortized cost	307
Debt securities, unrealized gain (loss)	8
Debt securities, carrying value	$ 315

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