Note Allowance for loan losses (T D R that subsequently defaulted) (Detail) $ in Thousands	3 Months Ended
Mar. 31, 2019 USD ($) loans	Mar. 31, 2018 USD ($) loans
Troubled Debt Restructuring
Loan count \| loans	185	102
Recorded investment as of first default date \| $	$ 3,730	$ 4,961
CRE non-owner occupied
Troubled Debt Restructuring
Loan count \| loans	1
Recorded investment as of first default date \| $	$ 47
CRE owner occupied
Troubled Debt Restructuring
Loan count \| loans	2	2
Recorded investment as of first default date \| $	$ 427	$ 86
Commercial and industrial
Troubled Debt Restructuring
Loan count \| loans	1	5
Recorded investment as of first default date \| $	$ 50	$ 72
Mortgages
Troubled Debt Restructuring
Loan count \| loans	8	17
Recorded investment as of first default date \| $	$ 745	$ 2,572
Leasing
Troubled Debt Restructuring
Loan count \| loans	1
Recorded investment as of first default date \| $	$ 22
Credit cards
Troubled Debt Restructuring
Loan count \| loans	104	48
Recorded investment as of first default date \| $	$ 1,087	$ 1,342
Personal Loan
Troubled Debt Restructuring
Loan count \| loans	68	30
Recorded investment as of first default date \| $	$ 1,352	$ 889

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=84173941&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.

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