Amortized Cost and Aggregate Fair Value of Available-for-Sale and Held-to-Maturity Securities (Detail) - USD ($)
$ in Thousands |
Sep. 30, 2016 |
Dec. 31, 2015 |
| Available-for-sale securities |
|
|
| Due within one year, Amortized Cost |
$ 16,747
|
|
| Due after one year but within five years, Amortized Cost |
2,131
|
|
| Due after five years but within ten years, Amortized Cost |
87,281
|
|
| Due after ten years, Amortized Cost |
78,441
|
|
| Amortized Cost |
218,233
|
$ 372,389
|
| Held-to-maturity securities |
|
|
| Due within one year, Amortized Cost |
46,867
|
|
| Due after one year but within five years, Amortized Cost |
25,315
|
|
| Due after five years but within ten years, Amortized Cost |
0
|
|
| Due after ten years, Amortized Cost |
0
|
|
| Held-to-maturity Securities, Amortized Cost |
72,182
|
72,541
|
| Available-for-sale securities |
|
|
| Due within one year, Fair Value |
16,753
|
|
| Due after one year but within five years, Fair Value |
2,178
|
|
| Due after five years but within ten years, Fair Value |
91,586
|
|
| Due after ten years, Fair Value |
76,474
|
|
| Fair Value |
220,856
|
366,173
|
| Held-to-maturity securities |
|
|
| Due within one year, Fair Value |
46,909
|
|
| Due after one year but within five years, Fair Value |
25,698
|
|
| Due after five years but within ten years, Fair Value |
0
|
|
| Due after ten years, Fair Value |
0
|
|
| Fair Value |
72,607
|
72,490
|
| Debt Securities |
|
|
| Available-for-sale securities |
|
|
| Amortized Cost |
184,600
|
|
| Available-for-sale securities |
|
|
| Fair Value |
186,991
|
|
| Total Mortgage Backed Securities |
|
|
| Available-for-sale securities |
|
|
| Amortized Cost |
33,578
|
|
| Available-for-sale securities |
|
|
| Fair Value |
33,792
|
|
| Equity Securities |
|
|
| Available-for-sale securities |
|
|
| Amortized Cost |
55
|
66
|
| Available-for-sale securities |
|
|
| Fair Value |
$ 73
|
$ 72
|