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DEBT SECURITIES - Investments Securities Held to Maturity (Securities in continous unrealized loss position) (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Schedule Of Held To Maturity Securities [Line Items]
HTM Fair Value Less than 12 months	$ 268,552
HTM Unrealized Losses Less than 12 months	11,924
HTM Fair Value 12 months or more	121,440
HTM Unrealized Losses 12 months or more	7,553
HTM Fair Value	389,992
HTM Unrealized Losses	19,477
FHLMC [Member] | Mortgage Backed Securities [Member]
Schedule Of Held To Maturity Securities [Line Items]
HTM Fair Value Less than 12 months	40,381
HTM Unrealized Losses Less than 12 months	2,131
HTM Fair Value 12 months or more	0
HTM Unrealized Losses 12 months or more	0
HTM Fair Value	40,381
HTM Unrealized Losses	2,131
GNMA [Member] | Mortgage Backed Securities [Member]
Schedule Of Held To Maturity Securities [Line Items]
HTM Fair Value Less than 12 months	18,821
HTM Unrealized Losses Less than 12 months	1,157
HTM Fair Value 12 months or more	0
HTM Unrealized Losses 12 months or more	0
HTM Fair Value	18,821
HTM Unrealized Losses	1,157
FNMA [Member] | Mortgage Backed Securities [Member]
Schedule Of Held To Maturity Securities [Line Items]
HTM Fair Value Less than 12 months	79,155
HTM Unrealized Losses Less than 12 months	4,273
HTM Fair Value 12 months or more	0
HTM Unrealized Losses 12 months or more	0
HTM Fair Value	79,155
HTM Unrealized Losses	4,273
Collateralized Mortgage Obligations [Member] | Mortgage Backed Securities [Member]
Schedule Of Held To Maturity Securities [Line Items]
HTM Fair Value Less than 12 months	130,195
HTM Unrealized Losses Less than 12 months	4,363
HTM Fair Value 12 months or more	0
HTM Unrealized Losses 12 months or more	0
HTM Fair Value	130,195
HTM Unrealized Losses	4,363
Puerto Rico [Member] | Municipal Bonds [Member]
Schedule Of Held To Maturity Securities [Line Items]
HTM Fair Value Less than 12 months	0	$ 0
HTM Unrealized Losses Less than 12 months	0	0
HTM Fair Value 12 months or more	121,440	140,732
HTM Unrealized Losses 12 months or more	7,553	13,072
HTM Fair Value	121,440	140,732
HTM Unrealized Losses	$ 7,553	$ 13,072

X

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Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in continuous loss position for 12 months or longer.

+ References

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-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
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