DEPOSITS (Deposit Liabilities) (Details) - USD ($) |
Dec. 31, 2017 |
Dec. 31, 2016 |
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Deposit Liabilities [Line Items] | ||||
Non-interest-bearing checking | $ 3,265,544,000 | $ 3,140,451,000 | ||
Interest-bearing checking | 971,137,000 | 914,484,000 | ||
Regular savings accounts | 1,557,500,000 | 1,523,391,000 | ||
Money market accounts | 1,422,313,000 | 1,497,755,000 | ||
Total interest-bearing transaction and savings accounts | 3,950,950,000 | 3,935,630,000 | ||
Time Deposits, $250,000 or less | 813,997,000 | 884,403,000 | ||
Time Deposits, More than $250,000 | 152,940,000 | 160,930,000 | ||
Interest-bearing certificates | [1] | 966,937,000 | 1,045,333,000 | |
Total deposits | 8,183,431,000 | 8,121,414,000 | ||
Included in total deposits: | ||||
Public fund transaction accounts | 198,719,000 | 221,765,000 | ||
Public fund interest-bearing certificates | 23,685,000 | 25,650,000 | ||
Total public deposits | 222,404,000 | 247,415,000 | ||
Total brokered deposits | 57,228,000 | 34,074,000 | ||
Related Party Deposit Liabilities | 10,000,000 | 7,200,000 | ||
Business Combination, Acquired Deposits, Time Deposit Premium | 11,000 | 426,000 | ||
Time deposits equal to or greater than $250,000 | $ 155,900,000 | $ 165,400,000 | ||
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