Loans - Pre-Modification and Post-Modification Outstanding Recorded Investments (Detail) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2016 USD ($) Contract	Jun. 30, 2015 USD ($) Contract	Jun. 30, 2016 USD ($) Contract	Jun. 30, 2015 USD ($) Contract
Accounts, Notes, Loans and Financing Receivable
Troubled Debt Restructurings, Number of Contracts (in contract) \| Contract	11	13	17	21
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment	$ 13,020	$ 6,188	$ 15,391	$ 13,052
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment	$ 11,997	$ 6,861	$ 14,084	$ 13,627
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable
Troubled Debt Restructurings, Number of Contracts (in contract) \| Contract	4	6	6	12
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment	$ 5,079	$ 1,947	$ 6,456	$ 3,531
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment	$ 4,094	$ 1,922	$ 5,437	$ 3,412
Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable
Troubled Debt Restructurings, Number of Contracts (in contract) \| Contract	2	4	3	5
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment	$ 6,111	$ 2,062	$ 6,658	$ 7,062
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment	$ 6,077	$ 2,763	$ 6,388	$ 7,763
Commercial real estate loans \| Commercial real estate
Accounts, Notes, Loans and Financing Receivable
Troubled Debt Restructurings, Number of Contracts (in contract) \| Contract	2	3	3	4
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment	$ 6,111	$ 1,562	$ 6,658	$ 6,562
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment	$ 6,077	$ 1,573	$ 6,388	$ 6,573
Commercial real estate loans \| Construction
Accounts, Notes, Loans and Financing Receivable
Troubled Debt Restructurings, Number of Contracts (in contract) \| Contract	0	1	0	1
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment	$ 0	$ 500	$ 0	$ 500
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment	$ 0	$ 1,190	$ 0	$ 1,190
Residential mortgage
Accounts, Notes, Loans and Financing Receivable
Troubled Debt Restructurings, Number of Contracts (in contract) \| Contract	5	2	7	3
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment	$ 1,830	$ 1,098	$ 2,222	$ 1,378
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment	$ 1,826	$ 1,097	$ 2,206	$ 1,373
Consumer
Accounts, Notes, Loans and Financing Receivable
Troubled Debt Restructurings, Number of Contracts (in contract) \| Contract	0	1	1	1
Troubled Debt Restructurings, Pre-Modification Outstanding Recorded Investment	$ 0	$ 1,081	$ 55	$ 1,081
Troubled Debt Restructurings, Post-Modification Outstanding Recorded Investment	$ 0	$ 1,079	$ 53	$ 1,079

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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