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LOANS (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | $ 6,549,787 | $ 5,725,236
Commercial loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 3,678,476 | 3,108,030
Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 2,616,438 | 2,059,767
Commercial real estate | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 287,509 | 253,670
Commercial real estate | Single and multi-family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 317,491 | 251,606
Commercial real estate | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 2,011,438 | 1,554,491
Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,062,038 | 1,048,263
Commercial and industrial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 740,768 | 717,010
Commercial and industrial | Asset based lending |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 321,270 | 331,253
Residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,893,131 | 1,815,035
Residential | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 11,982 | 28,055
Residential | 1-4 family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,881,149 | 1,786,980
Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 978,180 | 802,171
Consumer | Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 393,800 | 360,605
Consumer | Auto and other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 584,380 | 441,566
Business Activities Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 5,221,307 | 4,560,683
Business Activities Loans | Commercial loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 2,834,446 | 2,461,259
Business Activities Loans | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,926,344 | 1,634,027
Business Activities Loans | Commercial real estate | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 253,302 | 210,196
Business Activities Loans | Commercial real estate | Single and multi-family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 191,819 | 214,823
Business Activities Loans | Commercial real estate | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,481,223 | 1,209,008
Business Activities Loans | Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 908,102 | 827,232
Business Activities Loans | Commercial and industrial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 586,832 | 495,979
Business Activities Loans | Commercial and industrial | Asset based lending |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 321,270 | 331,253
Business Activities Loans | Residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,594,972 | 1,480,937
Business Activities Loans | Residential | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 11,178 | 26,704
Business Activities Loans | Residential | 1-4 family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,583,794 | 1,454,233
Business Activities Loans | Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 791,889 | 618,487
Business Activities Loans | Consumer | Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 313,521 | 307,159
Business Activities Loans | Consumer | Auto and other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 478,368 | 311,328
Acquired Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 1,328,480 | 1,164,553
Acquired Loans | Commercial loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 844,030 | 646,771
Acquired Loans | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 690,094 | 425,740
Acquired Loans | Commercial real estate | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 34,207 | 43,474
Acquired Loans | Commercial real estate | Single and multi-family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 125,672 | 36,783
Acquired Loans | Commercial real estate | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 530,215 | 345,483
Acquired Loans | Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 153,936 | 221,031
Acquired Loans | Commercial and industrial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 153,936 | 221,031
Acquired Loans | Commercial and industrial | Asset based lending |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 0 | 0
Acquired Loans | Residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 298,159 | 334,098
Acquired Loans | Residential | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 804 | 1,351
Acquired Loans | Residential | 1-4 family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 297,355 | 332,747
Acquired Loans | Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 186,291 | 183,684
Acquired Loans | Consumer | Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | 80,279 | 53,446
Acquired Loans | Consumer | Auto and other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans | $ 106,012 | $ 130,238

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