Significant Accounting Policies (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Limited Partners Capital Account, Conversion Ratio			1
Gains (losses) on investments in equity securities, net	$ 4,319	$ 0	$ (5,823)	$ 34
Unrealized gains on investments without a readily determinable fair value	$ 0	$ 0	$ 0	34
Other, net
Summary Of Significant Accounting Policies [Line Items]
Unrealized gains on investments without a readily determinable fair value				$ 34