Loans and Leases Held for Investment and Allowance for Loan and Lease Losses - Impaired Loans and Leases With Associated Reserves and No Associated Reserves (Details) - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
Dec. 31, 2017 |
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
$ 86,760
|
|
$ 86,760
|
|
$ 37,290
|
| Recorded Investment, With No Recorded Allowance |
1,788
|
|
1,788
|
|
4,545
|
| Recorded Investment, Total |
88,548
|
|
88,548
|
|
41,835
|
| Loans, Unpaid Principal Balance |
93,161
|
|
93,161
|
|
45,695
|
| Loans, Related Allowance Recorded |
7,033
|
|
7,033
|
|
3,064
|
| Loans, Average Balance |
90,604
|
$ 36,940
|
89,248
|
$ 37,581
|
|
| Loans, Interest Income Recognized |
394
|
221
|
980
|
466
|
|
| Commercial & Industrial |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
23,306
|
|
23,306
|
|
14,842
|
| Recorded Investment, With No Recorded Allowance |
950
|
|
950
|
|
1,782
|
| Recorded Investment, Total |
24,256
|
|
24,256
|
|
16,624
|
| Loans, Unpaid Principal Balance |
27,483
|
|
27,483
|
|
18,566
|
| Loans, Related Allowance Recorded |
1,686
|
|
1,686
|
|
1,372
|
| Loans, Average Balance |
25,317
|
14,789
|
24,789
|
19,074
|
|
| Loans, Interest Income Recognized |
72
|
63
|
197
|
132
|
|
| Commercial & Industrial | Death Care Management |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
0
|
|
0
|
|
0
|
| Recorded Investment, With No Recorded Allowance |
6
|
|
6
|
|
7
|
| Recorded Investment, Total |
6
|
|
6
|
|
7
|
| Loans, Unpaid Principal Balance |
6
|
|
6
|
|
7
|
| Loans, Related Allowance Recorded |
0
|
|
0
|
|
0
|
| Loans, Average Balance |
6
|
42
|
7
|
313
|
|
| Loans, Interest Income Recognized |
0
|
1
|
0
|
3
|
|
| Commercial & Industrial | Healthcare |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
7,093
|
|
7,093
|
|
3,521
|
| Recorded Investment, With No Recorded Allowance |
66
|
|
66
|
|
1,030
|
| Recorded Investment, Total |
7,159
|
|
7,159
|
|
4,551
|
| Loans, Unpaid Principal Balance |
7,402
|
|
7,402
|
|
5,643
|
| Loans, Related Allowance Recorded |
416
|
|
416
|
|
165
|
| Loans, Average Balance |
7,152
|
7,076
|
7,232
|
4,996
|
|
| Loans, Interest Income Recognized |
28
|
11
|
59
|
25
|
|
| Commercial & Industrial | Independent Pharmacies |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
9,758
|
|
9,758
|
|
8,154
|
| Recorded Investment, With No Recorded Allowance |
299
|
|
299
|
|
417
|
| Recorded Investment, Total |
10,057
|
|
10,057
|
|
8,571
|
| Loans, Unpaid Principal Balance |
11,680
|
|
11,680
|
|
9,078
|
| Loans, Related Allowance Recorded |
415
|
|
415
|
|
521
|
| Loans, Average Balance |
10,325
|
4,266
|
10,180
|
7,998
|
|
| Loans, Interest Income Recognized |
4
|
26
|
31
|
52
|
|
| Commercial & Industrial | Registered Investment Advisors |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
3,217
|
|
3,217
|
|
662
|
| Recorded Investment, With No Recorded Allowance |
0
|
|
0
|
|
71
|
| Recorded Investment, Total |
3,217
|
|
3,217
|
|
733
|
| Loans, Unpaid Principal Balance |
3,740
|
|
3,740
|
|
725
|
| Loans, Related Allowance Recorded |
513
|
|
513
|
|
504
|
| Loans, Average Balance |
3,589
|
894
|
3,007
|
1,438
|
|
| Loans, Interest Income Recognized |
7
|
14
|
31
|
28
|
|
| Commercial & Industrial | Veterinary Industry |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
2,259
|
|
2,259
|
|
2,505
|
| Recorded Investment, With No Recorded Allowance |
123
|
|
123
|
|
257
|
| Recorded Investment, Total |
2,382
|
|
2,382
|
|
2,762
|
| Loans, Unpaid Principal Balance |
2,657
|
|
2,657
|
|
3,113
|
| Loans, Related Allowance Recorded |
129
|
|
129
|
|
182
|
| Loans, Average Balance |
2,423
|
2,511
|
2,488
|
4,329
|
|
| Loans, Interest Income Recognized |
16
|
11
|
54
|
24
|
|
| Commercial & Industrial | Other Industries |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
979
|
|
979
|
|
|
| Recorded Investment, With No Recorded Allowance |
456
|
|
456
|
|
|
| Recorded Investment, Total |
1,435
|
|
1,435
|
|
|
| Loans, Unpaid Principal Balance |
1,998
|
|
1,998
|
|
|
| Loans, Related Allowance Recorded |
213
|
|
213
|
|
|
| Loans, Average Balance |
1,822
|
0
|
1,875
|
0
|
|
| Loans, Interest Income Recognized |
17
|
0
|
22
|
0
|
|
| Construction & Development |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
2,172
|
|
2,172
|
|
1,237
|
| Recorded Investment, With No Recorded Allowance |
0
|
|
0
|
|
0
|
| Recorded Investment, Total |
2,172
|
|
2,172
|
|
1,237
|
| Loans, Unpaid Principal Balance |
2,147
|
|
2,147
|
|
1,258
|
| Loans, Related Allowance Recorded |
11
|
|
11
|
|
157
|
| Loans, Average Balance |
2,162
|
602
|
2,162
|
120
|
|
| Loans, Interest Income Recognized |
12
|
2
|
63
|
2
|
|
| Construction & Development | Healthcare |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
2,172
|
|
2,172
|
|
1,237
|
| Recorded Investment, With No Recorded Allowance |
0
|
|
0
|
|
0
|
| Recorded Investment, Total |
2,172
|
|
2,172
|
|
1,237
|
| Loans, Unpaid Principal Balance |
2,147
|
|
2,147
|
|
1,258
|
| Loans, Related Allowance Recorded |
11
|
|
11
|
|
157
|
| Loans, Average Balance |
2,162
|
602
|
2,162
|
120
|
|
| Loans, Interest Income Recognized |
12
|
2
|
63
|
2
|
|
| Commercial Real Estate |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
39,719
|
|
39,719
|
|
21,211
|
| Recorded Investment, With No Recorded Allowance |
646
|
|
646
|
|
2,763
|
| Recorded Investment, Total |
40,365
|
|
40,365
|
|
23,974
|
| Loans, Unpaid Principal Balance |
41,767
|
|
41,767
|
|
25,813
|
| Loans, Related Allowance Recorded |
2,196
|
|
2,196
|
|
1,535
|
| Loans, Average Balance |
41,333
|
21,526
|
40,494
|
18,188
|
|
| Loans, Interest Income Recognized |
272
|
156
|
652
|
332
|
|
| Commercial Real Estate | Death Care Management |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
2,786
|
|
2,786
|
|
2,221
|
| Recorded Investment, With No Recorded Allowance |
302
|
|
302
|
|
610
|
| Recorded Investment, Total |
3,088
|
|
3,088
|
|
2,831
|
| Loans, Unpaid Principal Balance |
3,226
|
|
3,226
|
|
2,964
|
| Loans, Related Allowance Recorded |
16
|
|
16
|
|
260
|
| Loans, Average Balance |
3,098
|
2,512
|
3,115
|
2,030
|
|
| Loans, Interest Income Recognized |
24
|
13
|
88
|
30
|
|
| Commercial Real Estate | Healthcare |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
18,523
|
|
18,523
|
|
3,717
|
| Recorded Investment, With No Recorded Allowance |
234
|
|
234
|
|
598
|
| Recorded Investment, Total |
18,757
|
|
18,757
|
|
4,315
|
| Loans, Unpaid Principal Balance |
18,751
|
|
18,751
|
|
4,332
|
| Loans, Related Allowance Recorded |
1,174
|
|
1,174
|
|
192
|
| Loans, Average Balance |
18,765
|
3,079
|
17,535
|
2,940
|
|
| Loans, Interest Income Recognized |
150
|
11
|
230
|
24
|
|
| Commercial Real Estate | Independent Pharmacies |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
2,543
|
|
2,543
|
|
1,562
|
| Recorded Investment, With No Recorded Allowance |
0
|
|
0
|
|
0
|
| Recorded Investment, Total |
2,543
|
|
2,543
|
|
1,562
|
| Loans, Unpaid Principal Balance |
2,835
|
|
2,835
|
|
1,933
|
| Loans, Related Allowance Recorded |
14
|
|
14
|
|
8
|
| Loans, Average Balance |
2,739
|
1,985
|
2,763
|
149
|
|
| Loans, Interest Income Recognized |
0
|
0
|
1
|
0
|
|
| Commercial Real Estate | Veterinary Industry |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
15,867
|
|
15,867
|
|
13,711
|
| Recorded Investment, With No Recorded Allowance |
110
|
|
110
|
|
1,555
|
| Recorded Investment, Total |
15,977
|
|
15,977
|
|
15,266
|
| Loans, Unpaid Principal Balance |
16,955
|
|
16,955
|
|
16,584
|
| Loans, Related Allowance Recorded |
992
|
|
992
|
|
1,075
|
| Loans, Average Balance |
16,731
|
13,950
|
17,081
|
13,069
|
|
| Loans, Interest Income Recognized |
98
|
132
|
333
|
278
|
|
| Commercial Land |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
21,563
|
|
21,563
|
|
0
|
| Recorded Investment, With No Recorded Allowance |
192
|
|
192
|
|
0
|
| Recorded Investment, Total |
21,755
|
|
21,755
|
|
0
|
| Loans, Unpaid Principal Balance |
21,764
|
|
21,764
|
|
58
|
| Loans, Related Allowance Recorded |
3,140
|
|
3,140
|
|
0
|
| Loans, Average Balance |
21,792
|
23
|
21,803
|
199
|
|
| Loans, Interest Income Recognized |
38
|
0
|
68
|
0
|
|
| Commercial Land | Agriculture |
|
|
|
|
|
| Financing Receivable, Impaired [Line Items] |
|
|
|
|
|
| Recorded Investment, With a Recorded Allowance |
21,563
|
|
21,563
|
|
0
|
| Recorded Investment, With No Recorded Allowance |
192
|
|
192
|
|
0
|
| Recorded Investment, Total |
21,755
|
|
21,755
|
|
0
|
| Loans, Unpaid Principal Balance |
21,764
|
|
21,764
|
|
58
|
| Loans, Related Allowance Recorded |
3,140
|
|
3,140
|
|
$ 0
|
| Loans, Average Balance |
21,792
|
23
|
21,803
|
199
|
|
| Loans, Interest Income Recognized |
$ 38
|
$ 0
|
$ 68
|
$ 0
|
|