Loans, Leases and Allowance for Credit Losses - Troubled Debt Restructured Loans by Class for Which There was Payment Default (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2015 USD ($) SecurityLoan	Dec. 31, 2014 USD ($) SecurityLoan	Dec. 31, 2013 USD ($) SecurityLoan
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	4	8	15
Recorded Investment \| $	$ 1,184	$ 1,950	$ 6,370
Commercial real estate [Member] \| Multi-family [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	0	0	0
Recorded Investment \| $	$ 0	$ 0	$ 0
Commercial real estate [Member] \| Non-owner occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	0	2	3
Recorded Investment \| $	$ 0	$ 984	$ 1,490
Commercial real estate [Member] \| Owner occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	0	2	3
Recorded Investment \| $	$ 0	$ 395	$ 2,506
Commercial and industrial [Member] \| Leases [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	0	0	0
Recorded Investment \| $	$ 0	$ 0	$ 0
Commercial and industrial [Member] \| Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	0	3	3
Recorded Investment \| $	$ 0	$ 369	$ 1,089
Construction and land development [Member] \| Land [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	0	0	2
Recorded Investment \| $	$ 0	$ 0	$ 330
Construction and land development [Member] \| Construction [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	1	0	0
Recorded Investment \| $	$ 137	$ 0	$ 0
Residential real estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	3	1	4
Recorded Investment \| $	$ 1,047	$ 202	$ 955
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	0	0	0
Recorded Investment \| $	$ 0	$ 0	$ 0

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953682-111524

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Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

+ References

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