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LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Non Traditional Mortgage Performance Loan to Value Ratio (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 USD ($) Loan | Dec. 31, 2016 USD ($) Loan
Financing Receivable, Recorded Investment [Line Items] |  |
Total loans and leases | $ 6,659,407 | $ 6,034,752
NTM Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total loans and leases | $ 806,933 | $ 885,148
Consumer | NTM Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 592 | 663
Total loans and leases | $ 806,933 | $ 885,148
Consumer | NTM Loans | Green Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total loans and leases | 85,800 | 91,000
Consumer | NTM Loans | Interest Only Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total loans and leases | 717,500 | 784,400
Consumer | NTM Loans | Negative amortization |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total loans and leases | $ 3,700 | $ 9,800
Consumer | NTM Loans | First lien |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 580 | 651
Total loans and leases | $ 803,355 | $ 881,589
Consumer | NTM Loans | First lien | Loan Portfolio Concentration Risk | Nontraditional First Lien Mortgage Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 100.00% | 100.00%
Consumer | NTM Loans | First lien | Green Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 101 | 107
Total loans and leases | $ 82,197 | $ 87,469
Consumer | NTM Loans | First lien | Green Loans | Loan Portfolio Concentration Risk | Green Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 100.00% | 100.00%
Consumer | NTM Loans | First lien | Interest Only Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 468 | 522
Total loans and leases | $ 717,484 | $ 784,364
Consumer | NTM Loans | First lien | Interest Only Loans | Loan Portfolio Concentration Risk | Interest Only Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 100.00% | 100.00%
Consumer | NTM Loans | First lien | Negative amortization |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 11 | 22
Total loans and leases | $ 3,674 | $ 9,756
Consumer | NTM Loans | First lien | Negative amortization | Loan Portfolio Concentration Risk | Negative Amortization Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 100.00% | 100.00%
Consumer | NTM Loans | First lien | Less than 61 |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 311 | 257
Total loans and leases | $ 461,877 | $ 382,892
Consumer | NTM Loans | First lien | Less than 61 | Loan Portfolio Concentration Risk | Nontraditional First Lien Mortgage Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 57.50% | 43.40%
Consumer | NTM Loans | First lien | Less than 61 | Green Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 60 | 45
Total loans and leases | $ 51,241 | $ 39,105
Consumer | NTM Loans | First lien | Less than 61 | Green Loans | Loan Portfolio Concentration Risk | Green Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 62.30% | 44.70%
Consumer | NTM Loans | First lien | Less than 61 | Interest Only Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 242 | 196
Total loans and leases | $ 407,810 | $ 336,744
Consumer | NTM Loans | First lien | Less than 61 | Interest Only Loans | Loan Portfolio Concentration Risk | Interest Only Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 56.80% | 42.90%
Consumer | NTM Loans | First lien | Less than 61 | Negative amortization |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 9 | 16
Total loans and leases | $ 2,826 | $ 7,043
Consumer | NTM Loans | First lien | Less than 61 | Negative amortization | Loan Portfolio Concentration Risk | Negative Amortization Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 76.90% | 72.20%
Consumer | NTM Loans | First lien | 61-80 |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 255 | 364
Total loans and leases | $ 326,420 | $ 478,714
Consumer | NTM Loans | First lien | 61-80 | Loan Portfolio Concentration Risk | Nontraditional First Lien Mortgage Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 40.60% | 54.30%
Consumer | NTM Loans | First lien | 61-80 | Green Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 33 | 52
Total loans and leases | $ 25,072 | $ 41,732
Consumer | NTM Loans | First lien | 61-80 | Green Loans | Loan Portfolio Concentration Risk | Green Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 30.50% | 47.70%
Consumer | NTM Loans | First lien | 61-80 | Interest Only Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 220 | 306
Total loans and leases | $ 300,500 | $ 434,269
Consumer | NTM Loans | First lien | 61-80 | Interest Only Loans | Loan Portfolio Concentration Risk | Interest Only Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 41.90% | 55.40%
Consumer | NTM Loans | First lien | 61-80 | Negative amortization |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 2 | 6
Total loans and leases | $ 848 | $ 2,713
Consumer | NTM Loans | First lien | 61-80 | Negative amortization | Loan Portfolio Concentration Risk | Negative Amortization Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 23.10% | 27.80%
Consumer | NTM Loans | First lien | 81-100 |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 14 | 18
Total loans and leases | $ 15,058 | $ 15,460
Consumer | NTM Loans | First lien | 81-100 | Loan Portfolio Concentration Risk | Nontraditional First Lien Mortgage Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 1.90% | 1.80%
Consumer | NTM Loans | First lien | 81-100 | Green Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 8 | 10
Total loans and leases | $ 5,884 | $ 6,632
Consumer | NTM Loans | First lien | 81-100 | Green Loans | Loan Portfolio Concentration Risk | Green Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 7.20% | 7.60%
Consumer | NTM Loans | First lien | 81-100 | Interest Only Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 6 | 8
Total loans and leases | $ 9,174 | $ 8,828
Consumer | NTM Loans | First lien | 81-100 | Interest Only Loans | Loan Portfolio Concentration Risk | Interest Only Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 1.30% | 1.10%
Consumer | NTM Loans | First lien | 81-100 | Negative amortization |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 0 | 0
Total loans and leases | $ 0 | $ 0
Consumer | NTM Loans | First lien | 81-100 | Negative amortization | Loan Portfolio Concentration Risk | Negative Amortization Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 0.00% | 0.00%
Consumer | NTM Loans | First lien | Greater than 100 |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 0 | 12
Total loans and leases | $ 0 | $ 4,523
Consumer | NTM Loans | First lien | Greater than 100 | Loan Portfolio Concentration Risk | Nontraditional First Lien Mortgage Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 0.00% | 0.50%
Consumer | NTM Loans | First lien | Greater than 100 | Green Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 0 | 0
Total loans and leases | $ 0 | $ 0
Consumer | NTM Loans | First lien | Greater than 100 | Green Loans | Loan Portfolio Concentration Risk | Green Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 0.00% | 0.00%
Consumer | NTM Loans | First lien | Greater than 100 | Interest Only Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 0 | 12
Total loans and leases | $ 0 | $ 4,523
Consumer | NTM Loans | First lien | Greater than 100 | Interest Only Loans | Loan Portfolio Concentration Risk | Interest Only Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 0.00% | 0.60%
Consumer | NTM Loans | First lien | Greater than 100 | Negative amortization |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 0 | 0
Total loans and leases | $ 0 | $ 0
Consumer | NTM Loans | First lien | Greater than 100 | Negative amortization | Loan Portfolio Concentration Risk | Negative Amortization Loans Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 0.00% | 0.00%

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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524 + Details
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