Investments - Narrative (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Schedule of Investments [Line Items]
Equity method investments	$ 38,600		$ 38,400
Gains (losses) on equity method investments	2,062	$ 2,803
Impairment charge on equity method investments	0	0
Equity method investment, amount sold	0	0
Equity investments carried under measurement alternative	200		200
Equity investments carried under measurement alternative, impairment	0	0
Equity investments carried under measurement alternative, loss	0	0
Equity investments carried under measurement alternative, gain	0	0
Total assets	4,484,271		3,074,971
Total liabilities	3,667,830		2,326,244
Maximum Exposure to Loss	5,300		5,500
Other nonoperating income (expense)
Schedule of Investments [Line Items]
Equity investments carried under measurement alternative, loss		$ 100
Equity investments carried under measurement alternative, gain	1,300
Variable interest entity, primary beneficiary
Schedule of Investments [Line Items]
Total assets	8,800		$ 9,200
Total liabilities	$ 1,400