SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Securities sold under agreements to repurchase |
|
|
|
| Outstanding balance at end of period |
$ 173,473
|
$ 395,433
|
|
| Securities sold under agreements to repurchase |
|
|
|
| Securities sold under agreements to repurchase |
|
|
|
| Securities pledged more than repurchase agreements (as a percent) |
2.00%
|
|
|
| Outstanding balance at end of period |
$ 173,473
|
$ 395,433
|
|
| Weighted average interest rate at end of period (as a percent) |
0.05%
|
0.02%
|
|
| Fair Value of securities pledged |
$ 203,074
|
$ 458,194
|
|
| Average outstanding balance during the period |
$ 280,296
|
$ 379,477
|
$ 296,196
|
| Average interest rate during the period (as a percent) |
0.02%
|
0.02%
|
0.04%
|
| Maximum outstanding at any month end during the period |
$ 367,373
|
$ 442,981
|
$ 408,891
|
| Securities sold under agreements to repurchase | U.S. Treasury securities and U.S. Government agencies |
|
|
|
| Securities sold under agreements to repurchase |
|
|
|
| Fair Value of securities pledged |
116,025
|
244,707
|
|
| Securities sold under agreements to repurchase | Mortgage backed securities - residential |
|
|
|
| Securities sold under agreements to repurchase |
|
|
|
| Fair Value of securities pledged |
45,894
|
82,666
|
|
| Securities sold under agreements to repurchase | Collateralized mortgage obligations |
|
|
|
| Securities sold under agreements to repurchase |
|
|
|
| Fair Value of securities pledged |
$ 41,155
|
$ 130,821
|
|