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LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Aging of Recorded Investment in Past Due Loans and Leases (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | $ 110,469 | $ 80,931
Current | 5,073,925 | 3,868,191
Total ending loan balances | 5,184,394 | 3,949,122
30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 63,754 | 46,421
60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 16,483 | 11,914
Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 30,232 | 22,596
Non-Traditional Mortgages |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 785,908 | 350,575
Traditional Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 47,989 |
Current | 3,637,766 |
Total ending loan balances | 3,685,755 | 3,351,650
Traditional Loans | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 18,013 |
Traditional Loans | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 10,085 |
Traditional Loans | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 19,891 |
Traditional Loans | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 55,289 | 42,198
Purchased Credit Impaired |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 47,185 | 23,402
Current | 665,546 | 223,495
Total ending loan balances | 712,731 | 246,897
Purchased Credit Impaired | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 33,893 | 14,140
Purchased Credit Impaired | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 6,398 | 3,501
Purchased Credit Impaired | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 6,894 | 5,761
Consumer | Single family residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 2,150,453 | 1,048,485
Consumer | Other consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 109,681 | 161,939
Consumer | Non-Traditional Mortgages |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 15,295 | 13,422
Current | 770,613 | 337,153
Total ending loan balances | 785,908 | 350,575
Consumer | Non-Traditional Mortgages | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 11,848 | 10,562
Consumer | Non-Traditional Mortgages | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 165
Consumer | Non-Traditional Mortgages | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 3,447 | 2,695
Consumer | Non-Traditional Mortgages | Green Loans (HELOC) - first liens |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 781,091 | 345,483
Consumer | Non-Traditional Mortgages | Green Loans (HELOC) - second liens |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 4,817 | 5,092
Consumer | Non-Traditional Mortgages | Single family residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 7,382 | 3,629
Current | 668,578 | 218,677
Total ending loan balances | 675,960 | 222,306
Consumer | Non-Traditional Mortgages | Single family residential mortgage | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 3,935 | 1,415
Consumer | Non-Traditional Mortgages | Single family residential mortgage | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 165
Consumer | Non-Traditional Mortgages | Single family residential mortgage | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 3,447 | 2,049
Consumer | Non-Traditional Mortgages | Consumer Home Equity Loan | Green Loans (HELOC) - first liens |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 7,913 | 9,290
Current | 97,218 | 113,887
Total ending loan balances | 105,131 | 123,177
Consumer | Non-Traditional Mortgages | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 7,913 | 8,853
Consumer | Non-Traditional Mortgages | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Consumer | Non-Traditional Mortgages | Consumer Home Equity Loan | Green Loans (HELOC) - first liens | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 437
Consumer | Non-Traditional Mortgages | Consumer Home Equity Loan | Green Loans (HELOC) - second liens |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 503
Current | 4,704 | 4,476
Total ending loan balances | 4,704 | 4,979
Consumer | Non-Traditional Mortgages | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 294
Consumer | Non-Traditional Mortgages | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Consumer | Non-Traditional Mortgages | Consumer Home Equity Loan | Green Loans (HELOC) - second liens | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 209
Consumer | Non-Traditional Mortgages | Other consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Current | 113 | 113
Total ending loan balances | 113 | 113
Consumer | Non-Traditional Mortgages | Other consumer | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Consumer | Non-Traditional Mortgages | Other consumer | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Consumer | Non-Traditional Mortgages | Other consumer | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Consumer | Traditional Loans |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due |  | 44,107
Current |  | 3,307,543
Total ending loan balances |  | 3,351,650
Consumer | Traditional Loans | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due |  | 21,719
Consumer | Traditional Loans | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due |  | 8,248
Consumer | Traditional Loans | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due |  | 14,140
Consumer | Traditional Loans | Single family residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 36,875 | 35,474
Current | 738,388 | 559,626
Total ending loan balances | 775,263 | 595,100
Consumer | Traditional Loans | Single family residential mortgage | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 15,762 | 17,185
Consumer | Traditional Loans | Single family residential mortgage | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 3,887 | 7,878
Consumer | Traditional Loans | Single family residential mortgage | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 17,226 | 10,411
Consumer | Traditional Loans | Other consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 222 | 103
Current | 109,346 | 161,723
Total ending loan balances | 109,568 | 161,826
Consumer | Traditional Loans | Other consumer | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 9
Consumer | Traditional Loans | Other consumer | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 11 | 89
Consumer | Traditional Loans | Other consumer | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 211 | 5
Consumer | Purchased Credit Impaired | Single family residential mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 44,414 | 21,273
Current | 654,816 | 209,806
Total ending loan balances | 699,230 | 231,079
Consumer | Purchased Credit Impaired | Single family residential mortgage | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 33,507 | 13,262
Consumer | Purchased Credit Impaired | Single family residential mortgage | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 6,235 | 3,501
Consumer | Purchased Credit Impaired | Single family residential mortgage | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 4,672 | 4,510
Consumer | Purchased Credit Impaired | Other consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Current | 0 | 0
Total ending loan balances | 0 | 0
Consumer | Purchased Credit Impaired | Other consumer | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Consumer | Purchased Credit Impaired | Other consumer | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Consumer | Purchased Credit Impaired | Other consumer | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 876,999 | 490,900
Commercial | Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 727,707 | 999,857
Commercial | Multi-family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 904,300 | 955,683
Commercial | SBA |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 57,706 | 36,155
Commercial | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 55,289 | 42,198
Commercial | Lease financing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 192,424 | 85,749
Commercial | Traditional Loans | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 5,551 | 3,486
Current | 870,595 | 486,280
Total ending loan balances | 876,146 | 489,766
Commercial | Traditional Loans | Commercial and industrial | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 23 | 79
Commercial | Traditional Loans | Commercial and industrial | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 4,984 | 37
Commercial | Traditional Loans | Commercial and industrial | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 544 | 3,370
Commercial | Traditional Loans | Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 911 | 2,237
Current | 717,197 | 986,093
Total ending loan balances | 718,108 | 988,330
Commercial | Traditional Loans | Commercial real estate | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 2,237
Commercial | Traditional Loans | Commercial real estate | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial | Traditional Loans | Commercial real estate | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 911 | 0
Commercial | Traditional Loans | Multi-family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 655 | 1,280
Current | 903,645 | 954,403
Total ending loan balances | 904,300 | 955,683
Commercial | Traditional Loans | Multi-family | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 223 | 1,072
Commercial | Traditional Loans | Multi-family | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 208
Commercial | Traditional Loans | Multi-family | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 432 | 0
Commercial | Traditional Loans | SBA |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 335 | 336
Current | 54,322 | 32,662
Total ending loan balances | 54,657 | 32,998
Commercial | Traditional Loans | SBA | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 82
Commercial | Traditional Loans | SBA | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 162 | 0
Commercial | Traditional Loans | SBA | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 173 | 254
Commercial | Traditional Loans | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Current | 55,289 | 42,198
Total ending loan balances | 55,289 | 42,198
Commercial | Traditional Loans | Construction | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial | Traditional Loans | Construction | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial | Traditional Loans | Construction | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial | Traditional Loans | Lease financing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 3,440 | 1,191
Current | 188,984 | 84,558
Total ending loan balances | 192,424 | 85,749
Commercial | Traditional Loans | Lease financing | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 2,005 | 1,055
Commercial | Traditional Loans | Lease financing | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,041 | 36
Commercial | Traditional Loans | Lease financing | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 394 | 100
Commercial | Purchased Credit Impaired | Commercial and industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 176 | 0
Current | 677 | 1,134
Total ending loan balances | 853 | 1,134
Commercial | Purchased Credit Impaired | Commercial and industrial | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial | Purchased Credit Impaired | Commercial and industrial | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial | Purchased Credit Impaired | Commercial and industrial | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 176 | 0
Commercial | Purchased Credit Impaired | Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,425 | 951
Current | 8,174 | 10,576
Total ending loan balances | 9,599 | 11,527
Commercial | Purchased Credit Impaired | Commercial real estate | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial | Purchased Credit Impaired | Commercial real estate | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 0 | 0
Commercial | Purchased Credit Impaired | Commercial real estate | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,425 | 951
Commercial | Purchased Credit Impaired | Multi-family |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 0 | 0
Commercial | Purchased Credit Impaired | SBA |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 1,170 | 1,178
Current | 1,879 | 1,979
Total ending loan balances | 3,049 | 3,157
Commercial | Purchased Credit Impaired | SBA | 30 - 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 386 | 878
Commercial | Purchased Credit Impaired | SBA | 60 - 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 163 | 0
Commercial | Purchased Credit Impaired | SBA | Greater than 89 Days Past due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total Past Due | 621 | 300
Commercial | Purchased Credit Impaired | Construction |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | 0 | 0
Commercial | Purchased Credit Impaired | Lease financing |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Total ending loan balances | $ 0 | $ 0

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- Definition Financing receivables that are current. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953401-111524 + Details
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- Definition Recorded Investment in financing receivables that are past due at the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953401-111524 + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. 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=28367877&loc=d3e4428-111522 + Details
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