|
Derivative Instruments and Hedging Activities (Details) (Designated as hedging instruments [Member], Interest rate swap agreements [Member], USD $)
|
Jun. 30, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Fair Values of Derivatives | ||
| Asset Derivatives | ||
|
Other Liabilities [Member]
|
||
| Fair Values of Derivatives | ||
| Liability Derivatives | $ 1,088,000 | $ 1,307,000 |
| X | ||||||||||
|
- Definition
Fair value of the gross assets less the gross liabilities of a derivative asset or group of derivative assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Fair value of the gross liabilities less the gross assets of a derivative liability or group of derivative liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|