Investments Variable Interest Entity (Details) - USD ($) $ in Thousands		Jun. 30, 2024	Dec. 31, 2023
Variable Interest Entity [Line Items]
Investments	[1]	$ 371,345	$ 258,970
Other assets	[1]	30,729	27,543
Total assets		784,052	736,554
Due to brokers	[1]	595	201
Other liabilities and accrued expenses	[1]	14,952	21,657
Total liabilities		199,648	243,907
GLI SICAV, GRP-CIP, SICAV GRE and SICAV RAP [Member]
Variable Interest Entity [Line Items]
Investments		175,734	159,931
Due from brokers ($145 and $1,743)		479	13
Other assets		509	644
Total assets		176,722	160,588
Due to brokers		501	119
Other liabilities and accrued expenses		442	449
Total liabilities		943	568
Net assets		175,779	160,020
Attributable to the Company		54,548	48,601
Attributable to noncontrolling interests		$ 121,231	$ 111,419

[1] Amounts in parentheses represent the aggregate balances at June 30, 2024 and December 31, 2023 attributable to variable interest entities consolidated by the Company. Refer to Note 4, Investments for further discussion.