|
Fair Value Measurements - Assets and Liabilities Measured at 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] |
|
|
| Total securities available for sale |
$ 1,128,624
|
$ 530,926
|
| Stock warrants |
|
2
|
|
Mortgage-backed securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
584,157
|
217,059
|
|
U.S. government agency securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
172,793
|
83,536
|
|
Corporate bonds [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
16,940
|
20,835
|
|
U.S treasury securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
163
|
|
|
Other securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
22,704
|
2,886
|
|
Equity security [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
450
|
|
|
U.S. treasury securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
163
|
19,997
|
|
SBA loan pools securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
114,117
|
12,629
|
|
Municipal bonds-tax exempt [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
4,429
|
13,937
|
|
Municipal bonds-taxable [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
16,660
|
32,354
|
|
Collateralized mortgage obligations [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
196,211
|
127,693
|
|
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
172,956
|
103,533
|
|
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets [Member] | U.S. government agency securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
172,793
|
83,536
|
|
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets [Member] | U.S treasury securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
163
|
|
|
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets [Member] | U.S. treasury securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
|
19,997
|
|
Recurring Basis [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
954,500
|
426,645
|
|
Recurring Basis [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member] | Mortgage-backed securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
584,157
|
217,059
|
|
Recurring Basis [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member] | Corporate bonds [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
16,940
|
20,835
|
|
Recurring Basis [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member] | Other securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
22,704
|
2,886
|
|
Recurring Basis [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member] | SBA loan pools securities [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
114,117
|
12,629
|
|
Recurring Basis [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member] | Municipal bonds-tax exempt [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
3,711
|
13,189
|
|
Recurring Basis [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member] | Municipal bonds-taxable [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
16,660
|
32,354
|
|
Recurring Basis [Member] | Significant Unobservable Inputs [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
1,168
|
748
|
| Stock warrants |
|
2
|
|
Recurring Basis [Member] | Significant Unobservable Inputs [Member] | Equity security [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
450
|
|
|
Recurring Basis [Member] | Significant Unobservable Inputs [Member] | Municipal bonds-tax exempt [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
718
|
748
|
|
Recurring Basis [Member] | Collateralized mortgage obligations [Member] | Significant Observable Inputs with No Active Market with Identical Characteristics [Member]
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Total securities available for sale |
$ 196,211
|
$ 127,693
|