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SECURITIES - Available for Sale Investment Securities by Contractual Maturity (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Amortized Cost, Available for sale: |  |
Within one year | $ 51,975 |
One to five years | 43,373 |
Five to ten years | 51,991 |
Beyond ten years | 492,124 |
Total | 639,463 | $ 697,381
Estimated Fair Value, Available for sale: |  |
Within one year | 51,965 |
One to five years | 43,123 |
Five to ten years | 50,652 |
Beyond ten years | 492,551 |
Estimated Fair Value | 638,291 | 680,886
U.S. Treasury securities |  |
Amortized Cost, Available for sale: |  |
Within one year | 50,833 |
One to five years | 0 |
Total | 50,833 |
Estimated Fair Value, Available for sale: |  |
Within one year | 50,822 |
One to five years | 0 |
Estimated Fair Value | 50,822 |
U.S. GSE securities |  |
Amortized Cost, Available for sale: |  |
Within one year | 0 |
One to five years | 5,000 |
Five to ten years | 0 |
Beyond ten years | 0 |
Total | 5,000 | 29,997
Estimated Fair Value, Available for sale: |  |
Within one year | 0 |
One to five years | 4,995 |
Five to ten years | 0 |
Beyond ten years | 0 |
Estimated Fair Value | 4,995 | 29,050
State and municipal obligations |  |
Amortized Cost, Available for sale: |  |
Within one year | 1,142 |
One to five years | 14,620 |
Five to ten years | 16,088 |
Beyond ten years | 2,453 |
Total | 34,303 | 40,980
Estimated Fair Value, Available for sale: |  |
Within one year | 1,143 |
One to five years | 14,829 |
Five to ten years | 16,540 |
Beyond ten years | 2,452 |
Estimated Fair Value | 34,964 | 40,731
U.S. GSE residential mortgage-backed securities |  |
Amortized Cost, Available for sale: |  |
Within one year | 0 |
One to five years | 0 |
Beyond ten years | 84,550 |
Total | 84,550 | 96,536
Estimated Fair Value, Available for sale: |  |
Within one year | 0 |
One to five years | 0 |
Beyond ten years | 84,691 |
Estimated Fair Value | 84,691 | 93,538
U.S. GSE residential collateralized mortgage obligations |  |
Amortized Cost, Available for sale: |  |
Within one year | 0 |
One to five years | 0 |
Five to ten years | 0 |
Beyond ten years | 278,149 |
Total | 278,149 | 362,905
Estimated Fair Value, Available for sale: |  |
Within one year | 0 |
One to five years | 0 |
Five to ten years | 0 |
Beyond ten years | 277,851 |
Estimated Fair Value | 277,851 | 357,777
U.S. GSE commercial mortgage-backed securities |  |
Amortized Cost, Available for sale: |  |
Within one year | 0 |
One to five years | 8,753 |
Five to ten years | 4,903 |
Beyond ten years | 0 |
Total | 13,656 | 3,536
Estimated Fair Value, Available for sale: |  |
Within one year | 0 |
One to five years | 8,761 |
Five to ten years | 4,848 |
Beyond ten years | 0 |
Estimated Fair Value | 13,609 | 3,508
U.S. GSE commercial collateralized mortgage obligations |  |
Amortized Cost, Available for sale: |  |
Within one year | 0 |
One to five years | 0 |
Five to ten years | 0 |
Beyond ten years | 102,722 |
Total | 102,722 | 93,177
Estimated Fair Value, Available for sale: |  |
Within one year | 0 |
One to five years | 0 |
Five to ten years | 0 |
Beyond ten years | 104,156 |
Estimated Fair Value | 104,156 | 90,638
Other asset backed securities |  |
Amortized Cost, Available for sale: |  |
Within one year | 0 |
One to five years | 0 |
Five to ten years | 0 |
Beyond ten years | 24,250 |
Total | 24,250 | 24,250
Estimated Fair Value, Available for sale: |  |
Within one year | 0 |
One to five years | 0 |
Five to ten years | 0 |
Beyond ten years | 23,401 |
Estimated Fair Value | 23,401 | 23,219
Corporate bonds |  |
Amortized Cost, Available for sale: |  |
Within one year | 0 |
One to five years | 15,000 |
Five to ten years | 31,000 |
Beyond ten years | 0 |
Total | 46,000 | 46,000
Estimated Fair Value, Available for sale: |  |
Within one year | 0 |
One to five years | 14,538 |
Five to ten years | 29,264 |
Beyond ten years | 0 |
Estimated Fair Value | $ 43,802 | $ 42,425

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