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FANNIE MAE COMMITMENTS AND PLEDGED SECURITIES - Pledged Securities at Fair Value (Detail) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025	Dec. 31, 2024
Pledged securities
Pledged securities	$ 234,525	$ 224,954
Pledged Securities - Fannie Mae DUS Program
Pledged securities
Fair value of pledged securities in a continuous unrealized loss position for more than 12 months	98,100
Amortized cost of pledged securities in a continuous unrealized loss position for more than 12 months	99,200
Net unrealized loss of pledged securities in a continuous unrealized loss position for more than 12 months	1,100
Total pledged cash and cash equivalents
Pledged securities
Pledged securities	17,272	22,288	$ 17,966	$ 23,472
Restricted Cash - Pledged
Pledged securities
Pledged securities	1,155	17,419	1,176	3,015
Money Market Funds
Pledged securities
Pledged securities	16,117	4,869	16,790	20,457
Agency MBS
Pledged securities
Pledged securities	217,253	202,666	200,469	183,432
Asset Pledged as Collateral with Right \| Pledged Securities - Fannie Mae DUS Program
Pledged securities
Pledged securities	$ 234,525	$ 224,954	$ 218,435	$ 206,904