Retirement And Other Employee Benefits (Allocation Of Plan Assets, Based On The Fair Value Of Assets Held And Target Allocation) (Details)	12 Months Ended
	Dec. 31, 2011
Common Stock- U.S. Listed Small Cap [Member]
Defined Benefit Plan Disclosure [Line Items]
The Plans Asset Allocation Percentages, Equity securities, Low	5.00%	[1]
The Plans Asset Allocation Percentages, Equity securities, Target	7.50%	[1],[2]
The Plans Asset Allocation Percentages, Equity securities, High	10.00%	[1]
Mutual Fund- U.S. Listed Large Cap [Member]
Defined Benefit Plan Disclosure [Line Items]
The Plans Asset Allocation Percentages, Equity securities, Low	22.00%
The Plans Asset Allocation Percentages, Equity securities, Target	27.00%	[2]
The Plans Asset Allocation Percentages, Equity securities, High	32.00%
Common/Collective Trust- Foreign Listed [Member]
Defined Benefit Plan Disclosure [Line Items]
The Plans Asset Allocation Percentages, Equity securities, Low	5.00%
The Plans Asset Allocation Percentages, Equity securities, Target	7.50%	[2]
The Plans Asset Allocation Percentages, Equity securities, High	10.00%
U.S & Foreign Government And Government Agencies And Authorities [Member]
Defined Benefit Plan Disclosure [Line Items]
The Plans Asset Allocation Percentages, Fixed maturity securities, Low	8.00%
The Plans Asset Allocation Percentages, Fixed maturity securities, Target	10.50%	[2]
The Plans Asset Allocation Percentages, Fixed maturity securities, High	13.00%
Corporate- U.S & Foreign Investment Grade [Member]
Defined Benefit Plan Disclosure [Line Items]
The Plans Asset Allocation Percentages, Fixed maturity securities, Low	29.50%
The Plans Asset Allocation Percentages, Fixed maturity securities, Target	32.00%	[2]
The Plans Asset Allocation Percentages, Fixed maturity securities, High	34.50%
Corporate- U.S And Foreign High Yield [Member]
Defined Benefit Plan Disclosure [Line Items]
The Plans Asset Allocation Percentages, Fixed maturity securities, Low	5.00%
The Plans Asset Allocation Percentages, Fixed maturity securities, Target	7.50%	[2]
The Plans Asset Allocation Percentages, Fixed maturity securities, High	10.00%
Multi-Strategy Hedge Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
The Plans Asset Allocation Percentages, Investment fund, Low	5.50%
The Plans Asset Allocation Percentages, Investment fund, Target	8.00%	[2]
The Plans Asset Allocation Percentages, Investment fund, High	10.50%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan long term assets	30.00%
Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan long term assets	50.00%
Investment Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan long term assets	20.00%

[1] The Plans' long-term asset allocation targets are 30% equity, 50% fixed income and 20% investment funds. Current target asset allocations for equity securities include allocations for investment funds. The Company invests certain plan assets in investment funds, examples of which include real estate investment funds and private equity funds, during 2011. Amounts allocated for these investments are included in the equity securities caption of the fair value hierarchy at December 31, 2011, provided in the section above.

[2] It is understood that these guidelines are targets and that deviations may occur periodically as a result of cash flows, market impact or short-term decisions implemented by either the Investment Committee or their investment managers.