Investments (Tables)

9 Months Ended

Sep. 30, 2022

Investments [Abstract]

Summary of investments

The following tables summarize our investments as of September 30, 2022 and December 31, 2021 (in thousands):

	September 30, 2022
	Cost		Unrealized Gains		Unrealized Losses		Carrying Amount
Publicly traded companies	$	220,787	$	102,196	$	(99,441)	$	223,542
Entities that report NAV	438,087		331,477		(6,297)		763,267
Entities that do not report NAV:
Entities with observable price changes	104,337		95,289		(2,166)		197,460
Entities without observable price changes	384,278		—		—		384,278
Investments accounted for under the equity method	N/A		N/A		N/A		56,374
Total investments	$	1,147,489	$	528,962	$	(107,904)	$	1,624,921

	December 31, 2021
	Cost		Unrealized Gains		Unrealized Losses		Carrying Amount
Publicly traded companies	$	203,290	$	309,998	$	(29,471)	$	483,817
Entities that report NAV	385,692		446,586		(2,414)		829,864
Entities that do not report NAV:
Entities with observable price changes	56,257		74,279		(1,305)		129,231
Entities without observable price changes	362,064		—		—		362,064
Investments accounted for under the equity method	N/A		N/A		N/A		71,588
Total investments	$	1,007,303	$	830,863	$	(33,190)	$	1,876,564

Schedule of net investment income

Our investment (loss) income for the three and nine months ended September 30, 2022 and 2021 consisted of the following (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
Realized gains	$	24,210	$	81,516	$	75,971	$	189,013
Unrealized (losses) gains	(56,515)		(14,432)		(388,076)		183,348
Investment (loss) income	$	(32,305)	$	67,084	$	(312,105)	$	372,361