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LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Non Traditional Mortgage Performance by Credit Score (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 USD ($) Loan | Dec. 31, 2017 USD ($) Loan
Financing Receivable, Recorded Investment [Line Items] |  |
Total loans and leases (1) | $ 7,700,873 | $ 6,659,407
NTM Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total loans and leases (1) | $ 826,731 | $ 806,933
Consumer | NTM Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 628 | 592
Total loans and leases (1) | $ 826,731 | $ 806,933
Increase (decrease) in loans receivable | $ 19,800 |
Increase (decrease) in loans receivable, percentage | 2.50% |
Consumer | NTM Loans | First lien |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 618 | 580
Total loans and leases (1) | $ 824,318 | $ 803,355
Consumer | NTM Loans | Green Loans |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total loans and leases (1) | $ 70,100 | $ 85,800
Consumer | NTM Loans | Green Loans | First lien |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 88 | 101
Total loans and leases (1) | $ 67,729 | $ 82,197
Count Change | Loan | 0 |
Increase (decrease) in loans receivable | $ 0 |
Consumer | NTM Loans | Green Loans | First lien | Loan Portfolio Concentration Risk | Non-Traditional Single Family Residential Mortgage Green Loans First Lien Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 100.00% | 100.00%
Increase (decrease) in loans receivable, percentage | 0.00% |
Consumer | NTM Loans | Green Loans | First lien | Greater than 800 |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 16 | 12
Total loans and leases (1) | $ 10,617 | $ 7,407
Count Change | Loan | 4 |
Increase (decrease) in loans receivable | $ 3,210 |
Consumer | NTM Loans | Green Loans | First lien | Greater than 800 | Loan Portfolio Concentration Risk | Non-Traditional Single Family Residential Mortgage Green Loans First Lien Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 15.70% | 10.90%
Increase (decrease) in loans receivable, percentage | 4.80% |
Consumer | NTM Loans | Green Loans | First lien | 700-799 |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 50 | 44
Total loans and leases (1) | $ 34,888 | $ 28,327
Count Change | Loan | 6 |
Increase (decrease) in loans receivable | $ 6,561 |
Consumer | NTM Loans | Green Loans | First lien | 700-799 | Loan Portfolio Concentration Risk | Non-Traditional Single Family Residential Mortgage Green Loans First Lien Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 51.50% | 41.80%
Increase (decrease) in loans receivable, percentage | 9.70% |
Consumer | NTM Loans | Green Loans | First lien | 600-699 |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 16 | 23
Total loans and leases (1) | $ 14,098 | $ 23,406
Count Change | Loan | (7) |
Increase (decrease) in loans receivable | $ (9,308) |
Consumer | NTM Loans | Green Loans | First lien | 600-699 | Loan Portfolio Concentration Risk | Non-Traditional Single Family Residential Mortgage Green Loans First Lien Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 20.80% | 34.60%
Increase (decrease) in loans receivable, percentage | (13.80%) |
Consumer | NTM Loans | Green Loans | First lien | Less than 600 |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 3 | 5
Total loans and leases (1) | $ 4,347 | $ 4,679
Count Change | Loan | (2) |
Increase (decrease) in loans receivable | $ (332) |
Consumer | NTM Loans | Green Loans | First lien | Less than 600 | Loan Portfolio Concentration Risk | Non-Traditional Single Family Residential Mortgage Green Loans First Lien Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 6.40% | 6.90%
Increase (decrease) in loans receivable, percentage | (0.50%) |
Consumer | NTM Loans | Green Loans | First lien | No FICO |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Count | Loan | 3 | 4
Total loans and leases (1) | $ 3,779 | $ 3,910
Count Change | Loan | (1) |
Increase (decrease) in loans receivable | $ (131) |
Consumer | NTM Loans | Green Loans | First lien | No FICO | Loan Portfolio Concentration Risk | Non-Traditional Single Family Residential Mortgage Green Loans First Lien Portfolio |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Percentage to total loans and leases | 5.60% | 5.80%
Increase (decrease) in loans receivable, percentage | (0.20%) |

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