Fair Value of Financial Instruments (Reconciliation of Fair Valued Assets Measured on a Recurring Basis) (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Collateralized debt obligations [Member] | ||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||
| Beginning balance | $ 20,230 | $ 30,046 | $ 22,211 | $ 25,339 |
| Included in other comprehensive income | (303) | 1,882 | (2,284) | 6,589 |
| Ending Balance | 19,927 | 31,928 | 19,927 | 31,928 |
| Interest Rate Swap [Member] | ||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||
| Beginning balance | 0 | (140) | (66) | (199) |
| Included in other comprehensive income | 0 | 33 | 66 | 92 |
| Ending balance | $ 0 | $ (107) | $ 0 | $ (107) |