|
Supplemental Retirement Plan and Related Post Retirement Benefits (Details 5) (SERP Medical [Member])
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
|
SERP Medical [Member]
|
||
| Assumptions used to calculate the benefit obligation | ||
| Discount Rate | 4.20% | 4.50% |
| X | ||||||||||
|
- Definition
The interest rate used to adjust for the time value of money for the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|