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Commitments and Contingencies (Swapped Variable Cost for Fixed Cost and Terms of Interest Rate Swap Agreements) (Details) (Interest rate swaps, USD $)
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12 Months Ended |
|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
| Derivative [Line Items] |
|
|
|
|
| Derivative, Number of Instruments Held |
5 |
|
|
|
| Notional Amount |
$ 43,000,000 |
|
$ 43,000,000 |
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| Derivative, Fair Value, Net |
(9,143,000) |
[1] |
(3,912,000) |
[1] |
|
Contract, One
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|
|
|
|
| Derivative [Line Items] |
|
|
|
|
| Notional Amount |
10,000,000 |
|
|
|
| Trade Date |
Mar. 18, 2009 |
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|
|
| Maturity Date |
Jun. 30, 2021 |
|
|
|
| Fixed Rate Paid |
5.09% |
|
|
|
| Derivative, Fair Value, Net |
(1,092,000) |
[1] |
(807,000) |
[1] |
|
Contract, Two
|
|
|
|
|
| Derivative [Line Items] |
|
|
|
|
| Notional Amount |
10,000,000 |
|
|
|
| Trade Date |
Jul. 08, 2009 |
|
|
|
| Maturity Date |
Jun. 30, 2029 |
|
|
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| Fixed Rate Paid |
5.84% |
|
|
|
| Derivative, Fair Value, Net |
(2,511,000) |
[1] |
(1,121,000) |
[1] |
|
Contract, Three
|
|
|
|
|
| Derivative [Line Items] |
|
|
|
|
| Notional Amount |
10,000,000 |
|
|
|
| Trade Date |
May 06, 2010 |
|
|
|
| Maturity Date |
Jun. 30, 2030 |
|
|
|
| Fixed Rate Paid |
5.71% |
|
|
|
| Derivative, Fair Value, Net |
(2,434,000) |
[1] |
(944,000) |
[1] |
|
Contract, Four
|
|
|
|
|
| Derivative [Line Items] |
|
|
|
|
| Notional Amount |
5,000,000 |
|
|
|
| Trade Date |
Mar. 14, 2011 |
|
|
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| Maturity Date |
Mar. 30, 2031 |
|
|
|
| Fixed Rate Paid |
4.35% |
|
|
|
| Derivative, Fair Value, Net |
(1,279,000) |
[1] |
(493,000) |
[1] |
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Contract, Five
|
|
|
|
|
| Derivative [Line Items] |
|
|
|
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| Notional Amount |
8,000,000 |
|
|
|
| Trade Date |
May 04, 2011 |
|
|
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| Maturity Date |
Jul. 07, 2031 |
|
|
|
| Fixed Rate Paid |
4.14% |
|
|
|
| Derivative, Fair Value, Net |
$ (1,827,000) |
[1] |
$ (547,000) |
[1] |
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