Other Assets (Detail) - USD ($) $ in Thousands		Jun. 30, 2021	Dec. 31, 2020
Other Assets [Abstract]
Other assets	[1]	$ 278,403	$ 187,399
Operating lease assets
Other Assets [Abstract]
Other assets		82,612	74,037
Servicing assets
Other Assets [Abstract]
Other assets		61,003	56,347
Intangible assets, net
Other Assets [Abstract]
Other assets		23,861	11,427
Other investments
Other Assets [Abstract]
Other assets		17,512	8,275
Other
Other Assets [Abstract]
Other assets		$ 93,415	$ 37,313

[1] Includes amounts in consolidated variable interest entities (VIEs) presented separately in the table below.