FAIR VALUE MEASUREMENTS - Estimated Fair Values for All Financial Assets and Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financial liabilities
Other secured financing	$ 0	$ 903,255	[1]
Carrying Value | Level 3
Financial assets
Corporate debt, held for investment	0	1,968,991
Carrying Value | Level 2
Financial liabilities
Repurchase agreements	51,364,097	54,769,643
Other secured financing	0	903,255
Fair Value | Level 3
Financial assets
Corporate debt, held for investment	0	1,986,379
Fair Value | Level 2
Financial liabilities
Repurchase agreements	51,364,097	54,769,643
Other secured financing	$ 0	$ 903,255

[1] (1)Derived from the audited consolidated financial statements at December 31, 2021.