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Fair Value Of Financial Instruments (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2013
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Dec. 31, 2012
|
|---|---|---|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Amortized Cost | $ 368,319 | $ 245,106 |
| Available-for-sale Securities | 336,589 | 223,273 |
| Fair Value, Assets, Level 1 to Level 2 Transfers, Amount | 0 | |
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Collateralized debt obligations [Member]
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| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||
| Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 18 | |
| Amortized Cost | 37,146 | 36,798 |
| Available-for-sale Securities | $ 17,538 | $ 11,442 |