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LOANS - Summary of Past Due Loans for Acquired Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | $ 22,157 | $ 20,837
Total loans | 6,549,787 | 5,725,236
Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 5,883 | 4,882
Total loans | 2,616,438 | 2,059,767
Commercial real estate | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 0 | 59
Total loans | 287,509 | 253,670
Commercial real estate | Single and multi-family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 906 | 170
Total loans | 317,491 | 251,606
Commercial real estate | Other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 4,977 | 4,653
Total loans | 2,011,438 | 1,554,491
Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 7,440 | 8,221
Total loans | 1,062,038 | 1,048,263
Commercial and industrial | Other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 7,440 | 8,221
Total loans | 740,768 | 717,010
Commercial and industrial | Asset based lending |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 0 | 0
Total loans | 321,270 | 331,253
Residential |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 3,795 | 3,966
Total loans | 1,893,131 | 1,815,035
Residential | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 0 | 0
Total loans | 11,982 | 28,055
Residential | 1-4 family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 3,795 | 3,966
Total loans | 1,881,149 | 1,786,980
Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 5,039 | 3,768
Total loans | 978,180 | 802,171
Consumer | Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 3,192 | 2,324
Total loans | 393,800 | 360,605
Consumer | Auto and other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 1,847 | 1,444
Total loans | 584,380 | 441,566
Acquired Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 5,341 | 5,353
Total Past Due | 12,730 | 14,184
Acquired Credit Impaired | 46,816 | 21,362
Total loans | 1,328,480 | 1,164,553
Past Due greater than 90 days and Accruing | 1,611 | 1,422
Acquired Loans | Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 1,202 | 1,468
Total Past Due | 2,759 | 2,361
Acquired Credit Impaired | 34,820 | 15,765
Total loans | 690,094 | 425,740
Past Due greater than 90 days and Accruing | 0 | 127
Acquired Loans | Commercial real estate | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 0 | 0
Total Past Due | 0 | 0
Acquired Credit Impaired | 47 | 1,298
Total loans | 34,207 | 43,474
Past Due greater than 90 days and Accruing | 0 | 0
Acquired Loans | Commercial real estate | Single and multi-family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 437 | 100
Total Past Due | 439 | 403
Acquired Credit Impaired | 4,726 | 1,380
Total loans | 125,672 | 36,783
Past Due greater than 90 days and Accruing | 0 | 127
Acquired Loans | Commercial real estate | Other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 765 | 1,368
Total Past Due | 2,320 | 1,958
Acquired Credit Impaired | 30,047 | 13,087
Total loans | 530,215 | 345,483
Acquired Loans | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 1,155 | 597
Total Past Due | 3,127 | 3,139
Acquired Credit Impaired | 3,369 | 2,775
Total loans | 153,936 | 221,031
Past Due greater than 90 days and Accruing | 24 | 785
Acquired Loans | Commercial and industrial | Other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 1,155 | 597
Total Past Due | 3,127 | 3,139
Acquired Credit Impaired | 3,369 | 2,775
Total loans | 153,936 | 221,031
Past Due greater than 90 days and Accruing | 24 | 785
Acquired Loans | Commercial and industrial | Asset based lending |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 0 | 0
Total Past Due | 0 | 0
Acquired Credit Impaired | 0 | 0
Total loans | 0 | 0
Past Due greater than 90 days and Accruing | 0 | 0
Acquired Loans | Residential |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 1,572 | 1,668
Total Past Due | 2,679 | 4,771
Acquired Credit Impaired | 7,283 | 2,572
Total loans | 298,159 | 334,098
Past Due greater than 90 days and Accruing | 443 | 212
Acquired Loans | Residential | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 0 | 0
Total Past Due | 0 | 0
Acquired Credit Impaired | 0 | 0
Total loans | 804 | 1,351
Past Due greater than 90 days and Accruing | 0 | 0
Acquired Loans | Residential | 1-4 family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 1,572 | 1,668
Total Past Due | 2,679 | 4,771
Acquired Credit Impaired | 7,283 | 2,572
Total loans | 297,355 | 332,747
Past Due greater than 90 days and Accruing | 443 | 212
Acquired Loans | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 1,412 | 1,620
Total Past Due | 4,165 | 3,913
Acquired Credit Impaired | 1,344 | 250
Total loans | 186,291 | 183,684
Past Due greater than 90 days and Accruing | 1,144 | 298
Acquired Loans | Consumer | Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 517 | 727
Total Past Due | 1,623 | 1,196
Acquired Credit Impaired | 957 | 118
Total loans | 80,279 | 53,446
Past Due greater than 90 days and Accruing | 353 | 111
Acquired Loans | Consumer | Auto and other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | 895 | 893
Total Past Due | 2,542 | 2,717
Acquired Credit Impaired | 387 | 132
Total loans | 106,012 | 130,238
Past Due greater than 90 days and Accruing | 791 | 187
Acquired Loans | 30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 5,023 | 5,914
Acquired Loans | 30-59 Days Past Due | Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,557 | 547
Acquired Loans | 30-59 Days Past Due | Commercial real estate | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Acquired Loans | 30-59 Days Past Due | Commercial real estate | Single and multi-family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 2 | 0
Acquired Loans | 30-59 Days Past Due | Commercial real estate | Other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,555 | 547
Acquired Loans | 30-59 Days Past Due | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,850 | 1,214
Acquired Loans | 30-59 Days Past Due | Commercial and industrial | Other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,850 | 1,214
Acquired Loans | 30-59 Days Past Due | Commercial and industrial | Asset based lending |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Acquired Loans | 30-59 Days Past Due | Residential |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 321 | 2,580
Acquired Loans | 30-59 Days Past Due | Residential | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Acquired Loans | 30-59 Days Past Due | Residential | 1-4 family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 321 | 2,580
Acquired Loans | 30-59 Days Past Due | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,295 | 1,573
Acquired Loans | 30-59 Days Past Due | Consumer | Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 753 | 82
Acquired Loans | 30-59 Days Past Due | Consumer | Auto and other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 542 | 1,491
Acquired Loans | 60-89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 672 | 1,457
Acquired Loans | 60-89 Days Past Due | Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 219
Acquired Loans | 60-89 Days Past Due | Commercial real estate | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Acquired Loans | 60-89 Days Past Due | Commercial real estate | Single and multi-family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 176
Acquired Loans | 60-89 Days Past Due | Commercial real estate | Other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 43
Acquired Loans | 60-89 Days Past Due | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 15 | 505
Acquired Loans | 60-89 Days Past Due | Commercial and industrial | Other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 15 | 505
Acquired Loans | 60-89 Days Past Due | Commercial and industrial | Asset based lending |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Acquired Loans | 60-89 Days Past Due | Residential |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 343 | 311
Acquired Loans | 60-89 Days Past Due | Residential | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Acquired Loans | 60-89 Days Past Due | Residential | 1-4 family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 343 | 311
Acquired Loans | 60-89 Days Past Due | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 314 | 422
Acquired Loans | 60-89 Days Past Due | Consumer | Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 277
Acquired Loans | 60-89 Days Past Due | Consumer | Auto and other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 314 | 145
Acquired Loans | 90 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 7,035 | 6,813
Acquired Loans | 90 Days Past Due | Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,202 | 1,595
Acquired Loans | 90 Days Past Due | Commercial real estate | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Acquired Loans | 90 Days Past Due | Commercial real estate | Single and multi-family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 437 | 227
Acquired Loans | 90 Days Past Due | Commercial real estate | Other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 765 | 1,368
Acquired Loans | 90 Days Past Due | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,262 | 1,420
Acquired Loans | 90 Days Past Due | Commercial and industrial | Other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,262 | 1,420
Acquired Loans | 90 Days Past Due | Commercial and industrial | Asset based lending |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Acquired Loans | 90 Days Past Due | Residential |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 2,015 | 1,880
Acquired Loans | 90 Days Past Due | Residential | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Acquired Loans | 90 Days Past Due | Residential | 1-4 family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 2,015 | 1,880
Acquired Loans | 90 Days Past Due | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 2,556 | 1,918
Acquired Loans | 90 Days Past Due | Consumer | Home equity |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 870 | 837
Acquired Loans | 90 Days Past Due | Consumer | Auto and other |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,686 | 1,081
Acquired Impaired Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Non-accrual loans | $ 83 | $ 39

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