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SECURITIES AVAILABLE FOR SALE - Schedule of Maturity of Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Available for sale, Amortized Cost
Within 1 year	$ 7,012
Over 1 year to 5 years	15,718
Over 5 years to 10 years	46,614
Over 10 years	110,287
Total bonds and obligations	179,631
Mortgage-backed securities	552,371
Available-for-sale securities, amortized cost basis	732,002	$ 719,983
Available for sale, Fair Value
Within 1 year	7,007
Over 1 year to 5 years	15,521
Over 5 years to 10 years	46,574
Over 10 years	109,270
Total bonds and obligations	178,372
Mortgage-backed securities	540,187
Total securities available for sale	$ 718,559	$ 717,242

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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