|
FDIC Indemnification Asset - (Narrative) (Detail) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Banking and Thrift [Abstract] | |||
| Amortization | $ (27,741,000) | $ (18,960,000) | $ (13,820,000) |
| Decrease in carrying value of FDIC indemnification asset | 2,044,000 | (17,605,000) | |
| Payments/receipts to/from FDIC related to loss share assets | $ 2,044,000 | $ 77,000,000 | |