LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Composition of Nonaccrual Loans and Leases (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	$ 16,222	$ 14,942
Non-Traditional Mortgages (NTM)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	468	467
Traditional Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	15,754	14,475
Commercial | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	1,506	3,544
Commercial | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	583	619
Commercial | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	1,528	0
Commercial | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	97	109
Commercial | Non-Traditional Mortgages (NTM) | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Commercial | Non-Traditional Mortgages (NTM) | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Commercial | Non-Traditional Mortgages (NTM) | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Commercial | Non-Traditional Mortgages (NTM) | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Commercial | Traditional Loans | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	1,506	3,544
Commercial | Traditional Loans | SBA
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	583	619
Commercial | Traditional Loans | Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	1,528	0
Commercial | Traditional Loans | Lease financing
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	97	109
Consumer | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	11,027	10,287
Consumer | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	1,481	383
Consumer | Non-Traditional Mortgages (NTM) | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	468	467
Consumer | Non-Traditional Mortgages (NTM) | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	0	0
Consumer | Traditional Loans | Single family residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	10,559	9,820
Consumer | Traditional Loans | Other consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans and leases, Total	$ 1,481	$ 383