FEDERAL HOME LOAN BANK ADVANCES - SHORT-TERM FHLB ADVANCES (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| FHLB advances | |||
| Federal Home Loan Bank advances | $ 802,500 | $ 699,500 | |
| Interest rate (as percent) | 1.35% | ||
| Federal Home Loan Bank overnight advances | |||
| FHLB advances | |||
| Federal Home Loan Bank advances | $ 285,000 | 150,000 | |
| Average outstanding balance during the period | $ 91,087 | $ 63,327 | $ 15,756 |
| Average interest rate during the year (as percent) | 0.43% | 0.17% | 0.20% |
| Maximum outstanding at any month end during the period | $ 495,000 | $ 387,000 | $ 198,000 |
| Federal Home Loan Bank overnight advances | Weighted Average | |||
| FHLB advances | |||
| Interest rate (as percent) | 0.64% | 0.35% | |