Loans - Information on Impaired Loans, Disaggregated by Loan Class (Detail) (USD $) In Thousands, unless otherwise specified
|
3 Months Ended |
9 Months Ended |
|
Sep. 30, 2014
|
Sep. 30, 2013
|
Sep. 30, 2014
|
Sep. 30, 2013
|
Dec. 31, 2013
|
Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
Recorded Investment |
$ 49,382
|
|
$ 49,382
|
|
$ 53,066
|
Unpaid Principal Balance |
53,069
|
|
53,069
|
|
56,563
|
With No Related Allowance Recorded |
38,177
|
|
38,177
|
|
33,292
|
With an Allowance Recorded |
11,205
|
|
11,205
|
|
19,774
|
Related Allowance |
5,784
|
|
5,784
|
|
6,468
|
Average Recorded Investment |
49,827
|
43,767
|
49,632
|
46,622
|
|
Interest Income Recognized |
796
|
900
|
2,353
|
2,722
|
|
Real estate loans [Member] | Retail [Member]
|
|
|
|
|
|
Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
Recorded Investment |
4,443
|
|
4,443
|
|
6,244
|
Unpaid Principal Balance |
4,543
|
|
4,543
|
|
6,332
|
With No Related Allowance Recorded |
1,940
|
|
1,940
|
|
3,767
|
With an Allowance Recorded |
2,503
|
|
2,503
|
|
2,477
|
Related Allowance |
256
|
|
256
|
|
305
|
Average Recorded Investment |
4,456
|
2,723
|
5,682
|
3,703
|
|
Interest Income Recognized |
36
|
27
|
215
|
105
|
|
Real estate loans [Member] | Hotel/Motel [Member]
|
|
|
|
|
|
Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
Recorded Investment |
4,042
|
|
4,042
|
|
6,200
|
Unpaid Principal Balance |
4,855
|
|
4,855
|
|
6,940
|
With No Related Allowance Recorded |
4,042
|
|
4,042
|
|
4,668
|
With an Allowance Recorded |
|
|
|
|
1,532
|
Related Allowance |
1,261
|
|
1,261
|
|
1,183
|
Average Recorded Investment |
4,206
|
6,377
|
4,149
|
4,752
|
|
Interest Income Recognized |
102
|
127
|
232
|
384
|
|
Real estate loans [Member] | Gas station [Member]
|
|
|
|
|
|
Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
Recorded Investment |
14,152
|
|
14,152
|
|
9,389
|
Unpaid Principal Balance |
14,681
|
|
14,681
|
|
9,884
|
With No Related Allowance Recorded |
13,692
|
|
13,692
|
|
8,592
|
With an Allowance Recorded |
460
|
|
460
|
|
797
|
Related Allowance |
166
|
|
166
|
|
209
|
Average Recorded Investment |
14,181
|
8,777
|
12,023
|
8,775
|
|
Interest Income Recognized |
218
|
229
|
587
|
569
|
|
Real estate loans [Member] | Other [Member]
|
|
|
|
|
|
Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
Recorded Investment |
9,856
|
|
9,856
|
|
11,451
|
Unpaid Principal Balance |
11,266
|
|
11,266
|
|
12,882
|
With No Related Allowance Recorded |
8,518
|
|
8,518
|
|
9,555
|
With an Allowance Recorded |
1,338
|
|
1,338
|
|
1,896
|
Related Allowance |
344
|
|
344
|
|
351
|
Average Recorded Investment |
9,898
|
8,699
|
10,716
|
9,512
|
|
Interest Income Recognized |
232
|
243
|
682
|
779
|
|
Real estate loans [Member] | Residential property [Member]
|
|
|
|
|
|
Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
Recorded Investment |
3,161
|
|
3,161
|
|
2,678
|
Unpaid Principal Balance |
3,292
|
|
3,292
|
|
2,773
|
With No Related Allowance Recorded |
3,161
|
|
3,161
|
|
2,678
|
Average Recorded Investment |
3,173
|
2,992
|
2,853
|
3,026
|
|
Interest Income Recognized |
30
|
33
|
87
|
92
|
|
Commercial and industrial loans [Member] | Commercial term [Member]
|
|
|
|
|
|
Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
Recorded Investment |
7,958
|
|
7,958
|
|
13,834
|
Unpaid Principal Balance |
8,408
|
|
8,408
|
|
14,308
|
With No Related Allowance Recorded |
1,914
|
|
1,914
|
|
2,929
|
With an Allowance Recorded |
6,044
|
|
6,044
|
|
10,905
|
Related Allowance |
3,469
|
|
3,469
|
|
3,806
|
Average Recorded Investment |
8,118
|
10,581
|
10,007
|
12,751
|
|
Interest Income Recognized |
126
|
191
|
443
|
692
|
|
Commercial and industrial loans [Member] | Commercial lines of credit [Member]
|
|
|
|
|
|
Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
Recorded Investment |
2,874
|
|
2,874
|
|
614
|
Unpaid Principal Balance |
2,976
|
|
2,976
|
|
686
|
With No Related Allowance Recorded |
2,692
|
|
2,692
|
|
173
|
With an Allowance Recorded |
182
|
|
182
|
|
441
|
Related Allowance |
183
|
|
183
|
|
252
|
Average Recorded Investment |
2,884
|
840
|
1,447
|
1,137
|
|
Interest Income Recognized |
36
|
23
|
61
|
47
|
|
Commercial and industrial loans [Member] | International loans [Member]
|
|
|
|
|
|
Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
Recorded Investment |
1,138
|
|
1,138
|
|
1,087
|
Unpaid Principal Balance |
1,138
|
|
1,138
|
|
1,087
|
With No Related Allowance Recorded |
460
|
|
460
|
|
286
|
With an Allowance Recorded |
678
|
|
678
|
|
801
|
Related Allowance |
105
|
|
105
|
|
78
|
Average Recorded Investment |
1,146
|
1,197
|
1,136
|
1,342
|
|
Consumer loans [Member]
|
|
|
|
|
|
Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
Recorded Investment |
1,758
|
|
1,758
|
|
1,569
|
Unpaid Principal Balance |
1,910
|
|
1,910
|
|
1,671
|
With No Related Allowance Recorded |
1,758
|
|
1,758
|
|
644
|
With an Allowance Recorded |
|
|
|
|
925
|
Related Allowance |
|
|
|
|
284
|
Average Recorded Investment |
1,765
|
1,581
|
1,619
|
1,624
|
|
Interest Income Recognized |
$ 16
|
$ 27
|
$ 46
|
$ 54
|
|