|
Premises and Equipment - Summary of Cost and Accumulated Depreciation and Amortization of Premises and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
|
12 Months Ended |
|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
| Property, Plant and Equipment [Line Items] |
|
|
| Premises and equipment, gross |
$ 62,427 |
$ 59,513 |
| Less accumulated depreciation and amortization |
(23,001) |
(20,794) |
| Premises and equipment, net |
39,426 |
38,719 |
|
Buildings [Member]
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Premises and equipment, gross |
33,393 |
32,850 |
| Estimated useful lives |
40 years |
|
|
Leasehold Improvements [Member]
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Premises and equipment, gross |
4,637 |
4,022 |
|
Leasehold Improvements [Member] | Minimum [Member]
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Estimated useful lives |
5 years |
|
|
Leasehold Improvements [Member] | Maximum [Member]
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Estimated useful lives |
20 years |
|
|
Equipment [Member]
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Premises and equipment, gross |
16,154 |
14,398 |
|
Equipment [Member] | Minimum [Member]
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Estimated useful lives |
3 years |
|
|
Equipment [Member] | Maximum [Member]
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Estimated useful lives |
7 years |
|
|
Land and Land Improvements [Member]
|
|
|
| Property, Plant and Equipment [Line Items] |
|
|
| Premises and equipment, gross |
$ 8,243 |
$ 8,243 |