MORTGAGE SERVICING RIGHTS - Prepayment fees and Other information (Detail) - MSRs - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
SERVICING
Temporary and permanent impairment recognized	$ 0	$ 0	$ 0
Expected amortization period for net carrying value	5 years 8 months 12 days
Other revenues
SERVICING
Prepayment fees	$ 9,100,000	$ 3,500,000	$ 3,500,000
Ancillary Fee Income, Servicing Financial Asset, Statement of Income or Comprehensive Income [Extensible Enumeration]	Revenues	Revenues	Revenues
Placement fees and other interest income
SERVICING
Placement fees on escrow deposits	$ 114,500,000	$ 137,600,000	$ 127,400,000