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INVESTMENTS (Schedule of Amortized Cost and Estimated Fair Values of Debt Securities by Contractual Maturity) (Details) $ in Thousands | Jun. 30, 2021 USD ($)
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Available-for-sale, Amortized Cost |
Due in one year or less | $ 3,018
Due after one year through five years | 4,276
Due after five years through ten years | 74,599
Due after ten years | 47,116
Subtotal | 129,009
Mortgage-related securities | 1,252,855
Total | 1,381,864
Available-for-sale, Fair Value |
Due in one year or less | 3,072
Due after one year through five years | 4,641
Due after five years through ten years | 77,814
Due after ten years | 49,453
Subtotal | 134,980
Mortgage-related securities | 1,264,843
Fair value, total | $ 1,399,823

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