Fair Value Disclosures - Summary of Assets Measured at Estimated Fair Value on Recurring Basis (Detail) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2014
|
Dec. 31, 2013
|
---|---|---|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | $ 402,563 | $ 406,943 |
Fair Value, Measurements, Recurring [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 402,563 | 406,943 |
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 402,500 | 406,874 |
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | U.S. Government Agencies [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 24,176 | 25,451 |
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | U.S. government sponsored enterprises (GSE) [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 13,714 | |
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | States and Political Subdivisions [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 52,014 | 71,544 |
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | GSE Residential Mortgage-Backed Securities [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 179,786 | 198,619 |
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | GSE Residential Collateralized Mortgage Obligations (CMOs) [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 81,984 | 40,532 |
Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | GSE Commercial CMOs [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 64,540 | 57,014 |
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Financial Services [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 63 | 69 |
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | U.S. Government Agencies [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | U.S. government sponsored enterprises (GSE) [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | |
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | States and Political Subdivisions [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | GSE Residential Mortgage-Backed Securities [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | GSE Residential Collateralized Mortgage Obligations (CMOs) [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | GSE Commercial CMOs [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Financial Services [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 402,563 | 406,943 |
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 402,500 | 406,874 |
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | U.S. Government Agencies [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 24,176 | 25,451 |
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | U.S. government sponsored enterprises (GSE) [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 13,714 | |
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | States and Political Subdivisions [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 52,014 | 71,544 |
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | GSE Residential Mortgage-Backed Securities [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 179,786 | 198,619 |
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | GSE Residential Collateralized Mortgage Obligations (CMOs) [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 81,984 | 40,532 |
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | GSE Commercial CMOs [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 64,540 | 57,014 |
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Financial Services [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 63 | 69 |
Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | U.S. Government Agencies [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | U.S. government sponsored enterprises (GSE) [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | |
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | States and Political Subdivisions [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | GSE Residential Mortgage-Backed Securities [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | GSE Residential Collateralized Mortgage Obligations (CMOs) [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | GSE Commercial CMOs [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | 0 | 0 |
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Financial Services [Member]
|
||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Securities available for sale | $ 0 | $ 0 |