Goodwill and Investments and Other Assets, Net - Schedule of Other Intangible Assets, Net by Major Asset Class (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Line Items]
Amortizable Intangible Assets, Net	$ 1,123
Other intangible assets, net	1,686	$ 2,254
Customer Relationships [Member]
Goodwill [Line Items]
Amortizable Intangible Assets, Gross carrying amount	2,000	2,000
Amortizable Intangible Assets, Accumulated amortization	(1,011)	(510)
Amortizable Intangible Assets, Net	989	1,490
Trade Names [Member]
Goodwill [Line Items]
Amortizable Intangible Assets, Gross carrying amount	270	270
Amortizable Intangible Assets, Accumulated amortization	(136)	(69)
Amortizable Intangible Assets, Net	134	201
Domain Names [Member]
Goodwill [Line Items]
Unamortized Intangible Assets	$ 563	$ 563