XML 89 R78.htm IDEA: XBRL DOCUMENT v3.21.2
INVESTMENT SECURITIES - Investment Securities Available for Sale (Detail) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Schedule of Available-for-sale Securities [Line Items]    
Fair value $ 6,689,479,000 $ 4,647,019,000
Weighted-average yield 1.04% 1.28%
Gross Unrealized loss $ 65,591,000 $ 5,517,000
Gross Unrealized gain 39,896,000 68,995,000
Amortized cost 6,716,331,000 4,584,851,000
Allowance for Credit Losses 1,157,000 1,310,000
U S Treasury Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized cost Due within one year   7,498,000
Gross Unrealized gains Due within one year   9,000
Gross Unrealized losses Due within one year   0
Allowance for Credit Losses Within one year   0
Fair value Due within one year   $ 7,507,000
Weighted-average yield Due within one year   1.65%
Amortized cost After 1 to 5 years 88,234,000  
Gross Unrealized gains After 1 to 5 years 0  
Gross Unrealized losses After 1 to 5 years 347,000  
Allowance for Credit Losses After 1 to 5 years 0  
Fair value After 1 to 5 years $ 87,887,000  
Weighted-average yield After 1 to 5 years 0.50%  
U.S. government-sponsored agencies obligations [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized cost Due within one year   $ 24,413,000
Gross Unrealized gains Due within one year   273,000
Gross Unrealized losses Due within one year   0
Allowance for Credit Losses Within one year   0
Fair value Due within one year   $ 24,686,000
Weighted-average yield Due within one year   1.95%
Amortized cost After 1 to 5 years $ 1,771,629,000 $ 691,668,000
Gross Unrealized gains After 1 to 5 years 565,000 911,000
Gross Unrealized losses After 1 to 5 years 7,896,000 290,000
Allowance for Credit Losses After 1 to 5 years 0 0
Fair value After 1 to 5 years $ 1,764,298,000 $ 692,289,000
Weighted-average yield After 1 to 5 years 0.60% 0.57%
Amortized cost After 5 to 10 years $ 494,941,000 $ 441,454,000
Gross Unrealized gains After 5 to 10 years 268,000 821,000
Gross Unrealized losses After 5 to 10 years 7,825,000 347,000
Fair value After 5 to 10 years $ 487,384,000 $ 441,928,000
Weighted-average yield After 5 to 10 years 0.86% 0.83%
Amortized cost After 10 years $ 16,696,000 $ 21,413,000
Gross Unrealized gains After 10 years 243,000 0
Gross Unrealized losses After 10 years 0 149,000
Allowance for Credit Losses After 10 years 0 0
Fair value After 10 years $ 16,939,000 $ 21,264,000
Weighted-average yield After 10 years 0.63% 0.65%
Allowance for Credit Losses After 5 to 10 years $ 0 $ 0
Puerto Rico Government obligations [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized cost After 10 years 3,680,000 3,987,000
Gross Unrealized gains After 10 years 0 0
Gross Unrealized losses After 10 years 478,000 780,000
Allowance for Credit Losses After 10 years 308,000 308,000
Fair value After 10 years $ 2,894,000 $ 2,899,000
Weighted-average yield After 10 years 0.00% 6.97%
United States And Puerto Rico Government Obligations [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair value $ 2,359,402,000 $ 1,190,573,000
Weighted-average yield 0.66% 0.72%
Gross Unrealized loss $ 16,546,000 $ 1,566,000
Gross Unrealized gain 1,076,000 2,014,000
Amortized cost 2,375,180,000 1,190,433,000
Allowance for Credit Losses 308,000 308,000
Mortgage Backed Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair value $ 4,329,077,000 $ 3,455,796,000
Weighted-average yield 1.24% 1.47%
Gross Unrealized loss $ 49,045,000 $ 3,951,000
Gross Unrealized gain 38,820,000 66,981,000
Amortized cost 4,340,151,000 3,393,768,000
Allowance for Credit Losses 849,000 1,002,000
Mortgage Backed Securities [Member] | FHLMC [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized cost After 1 to 5 years 1,507,000 75,000
Gross Unrealized gains After 1 to 5 years 69,000 8,000
Gross Unrealized losses After 1 to 5 years 0 0
Allowance for Credit Losses After 1 to 5 years 0 0
Fair value After 1 to 5 years $ 1,576,000 $ 83,000
Weighted-average yield After 1 to 5 years 2.25% 4.86%
Amortized cost After 5 to 10 years $ 133,601,000 $ 60,773,000
Gross Unrealized gains After 5 to 10 years 3,023,000 2,850,000
Gross Unrealized losses After 5 to 10 years 232,000 0
Fair value After 5 to 10 years $ 136,392,000 $ 63,623,000
Weighted-average yield After 5 to 10 years 1.57% 2.15%
Amortized cost After 10 years $ 1,364,820,000 $ 1,070,984,000
Gross Unrealized gains After 10 years 5,902,000 15,340,000
Gross Unrealized losses After 10 years 20,123,000 159,000
Allowance for Credit Losses After 10 years 0 0
Fair value After 10 years $ 1,350,599,000 $ 1,086,165,000
Weighted-average yield After 10 years 1.15% 1.38%
Fair value $ 1,488,567,000 $ 1,149,871,000
Weighted-average yield 1.18% 1.42%
Gross Unrealized loss $ 20,355,000 $ 159,000
Gross Unrealized gain 8,994,000 18,198,000
Amortized cost 1,499,928,000 1,131,832,000
Allowance for Credit Losses After 5 to 10 years 0 0
Allowance for Credit Losses 0 0
Mortgage Backed Securities [Member] | GNMA [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized cost Due within one year 3,000 1,000
Gross Unrealized gains Due within one year 0 0
Gross Unrealized losses Due within one year 0 0
Allowance for Credit Losses Within one year 0 0
Fair value Due within one year $ 3,000 $ 1,000
Weighted-average yield Due within one year 1.79% 1.93%
Amortized cost After 1 to 5 years $ 18,823,000 $ 26,918,000
Gross Unrealized gains After 1 to 5 years 772,000 1,080,000
Gross Unrealized losses After 1 to 5 years 0 0
Allowance for Credit Losses After 1 to 5 years 0 0
Fair value After 1 to 5 years $ 19,595,000 $ 27,998,000
Weighted-average yield After 1 to 5 years 2.91% 2.91%
Amortized cost After 5 to 10 years $ 30,149,000 $ 40,727,000
Gross Unrealized gains After 5 to 10 years 158,000 128,000
Gross Unrealized losses After 5 to 10 years 119,000 69,000
Fair value After 5 to 10 years $ 30,188,000 $ 40,786,000
Weighted-average yield After 5 to 10 years 0.49% 0.42%
Amortized cost After 10 years $ 380,890,000 $ 614,584,000
Gross Unrealized gains After 10 years 9,941,000 16,271,000
Gross Unrealized losses After 10 years 1,454,000 148,000
Allowance for Credit Losses After 10 years 0 0
Fair value After 10 years $ 389,377,000 $ 630,707,000
Weighted-average yield After 10 years 1.35% 1.27%
Fair value $ 439,163,000 $ 699,492,000
Weighted-average yield 1.36% 1.29%
Gross Unrealized loss $ 1,573,000 $ 217,000
Gross Unrealized gain 10,871,000 17,479,000
Amortized cost 429,865,000 682,230,000
Allowance for Credit Losses After 5 to 10 years 0 0
Allowance for Credit Losses 0 0
Mortgage Backed Securities [Member] | FNMA [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized cost Due within one year 5,014,000  
Gross Unrealized gains Due within one year 40,000  
Gross Unrealized losses Due within one year 0  
Allowance for Credit Losses Within one year 0  
Fair value Due within one year $ 5,054,000  
Weighted-average yield Due within one year 2.07%  
Amortized cost After 1 to 5 years $ 21,646,000 24,812,000
Gross Unrealized gains After 1 to 5 years 559,000 891,000
Gross Unrealized losses After 1 to 5 years 0 0
Allowance for Credit Losses After 1 to 5 years 0 0
Fair value After 1 to 5 years $ 22,205,000 $ 25,703,000
Weighted-average yield After 1 to 5 years 2.85% 2.81%
Amortized cost After 5 to 10 years $ 239,743,000 $ 110,832,000
Gross Unrealized gains After 5 to 10 years 4,515,000 5,783,000
Gross Unrealized losses After 5 to 10 years 528,000 0
Fair value After 5 to 10 years $ 243,730,000 $ 116,615,000
Weighted-average yield After 5 to 10 years 1.43% 2.13%
Amortized cost After 10 years $ 1,547,907,000 $ 1,154,707,000
Gross Unrealized gains After 10 years 13,111,000 23,459,000
Gross Unrealized losses After 10 years 17,854,000 203,000
Allowance for Credit Losses After 10 years 0 0
Fair value After 10 years $ 1,543,164,000 $ 1,177,963,000
Weighted-average yield After 10 years 1.22% 1.53%
Fair value $ 1,814,153,000 $ 1,320,281,000
Weighted-average yield 1.27% 1.61%
Gross Unrealized loss $ 18,382,000 $ 203,000
Gross Unrealized gain 18,225,000 30,133,000
Amortized cost 1,814,310,000 1,290,351,000
Allowance for Credit Losses After 5 to 10 years 0 0
Allowance for Credit Losses 0 0
Mortgage Backed Securities [Member] | Collateralized mortgage obligations guaranteed by the FHLMC, FNMA and GNMA [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized cost After 1 to 5 years 272,000 538,000
Gross Unrealized gains After 1 to 5 years 0 0
Gross Unrealized losses After 1 to 5 years 0 1,000
Allowance for Credit Losses After 1 to 5 years 0 0
Fair value After 1 to 5 years $ 272,000 $ 537,000
Weighted-average yield After 1 to 5 years 0.75% 0.81%
Amortized cost After 5 to 10 years $ 40,202,000 $ 18,438,000
Gross Unrealized gains After 5 to 10 years 114,000 152,000
Gross Unrealized losses After 5 to 10 years 494,000 0
Fair value After 5 to 10 years $ 39,822,000 $ 18,590,000
Weighted-average yield After 5 to 10 years 1.09% 0.80%
Amortized cost After 10 years $ 544,865,000 $ 258,069,000
Gross Unrealized gains After 10 years 616,000 1,019,000
Gross Unrealized losses After 10 years 5,955,000 491,000
Allowance for Credit Losses After 10 years 0 0
Fair value After 10 years $ 539,526,000 $ 258,597,000
Weighted-average yield After 10 years 1.20% 1.56%
Fair value $ 579,620,000 $ 277,724,000
Weighted-average yield 1.19% 1.51%
Gross Unrealized loss $ 6,449,000 $ 492,000
Gross Unrealized gain 730,000 1,171,000
Amortized cost 585,339,000 277,045,000
Allowance for Credit Losses After 5 to 10 years 0 0
Allowance for Credit Losses 0 0
Mortgage Backed Securities [Member] | Private label [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized cost After 10 years 10,709,000 12,310,000
Gross Unrealized gains After 10 years 0 0
Gross Unrealized losses After 10 years 2,286,000 2,880,000
Allowance for Credit Losses After 10 years 849,000 1,002,000
Fair value After 10 years $ 7,574,000 $ 8,428,000
Weighted-average yield After 10 years 2.12% 2.25%
Fair value $ 7,600,000  
Weighted-average yield 2.12%  
Gross Unrealized loss $ 3,100,000  
Allowance for Credit Losses 800,000 $ 1,000,000.0
Other Debt Obligations [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized cost Due within one year 500,000  
Gross Unrealized gains Due within one year 0  
Gross Unrealized losses Due within one year 0  
Allowance for Credit Losses Within one year 0  
Fair value Due within one year $ 500,000  
Weighted-average yield Due within one year 0.72%  
Amortized cost After 1 to 5 years $ 500,000 650,000
Gross Unrealized gains After 1 to 5 years 0 0
Gross Unrealized losses After 1 to 5 years 0 0
Allowance for Credit Losses After 1 to 5 years 0 0
Fair value After 1 to 5 years $ 500,000 $ 650,000
Weighted-average yield After 1 to 5 years 0.84% 2.94%
Fair value $ 1,000,000  
Weighted-average yield 0.78%  
Gross Unrealized loss $ 0  
Gross Unrealized gain 0  
Amortized cost 1,000,000  
Allowance for Credit Losses $ 0