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ACQUISITIONS AND GOODWILL (Tables)
12 Months Ended
Dec. 31, 2019
Business Acquisitions and Goodwill [Abstract]  
Summary of Changes in the Carrying Amount of Goodwill A summary of changes in the carrying amount of goodwill follows (in thousands): 
WestCentralEastFinancial ServicesCorporateTotal
Balance at January 1, 2018$—  $—  $32,962  $—  $—  $32,962  
Additions—  —  —  —  —  —  
Balance at December 31, 2018—  —  32,962  —  —  32,962  
Additions—  —  —  —  —  —  
Balance at December 31, 2019$—  $—  $32,962  $—  $—  $32,962