Employee Benefit Plans (The Major Categories Of Plan Assets Measured At Fair Value On a Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Cash equivalents	$ 3,780	$ 6,607
Equity securities	34,166	36,432
Fixed income securities	31,742	32,545
Total Plan investments	72,358	75,584
Foreign Exchange Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash equivalents	35	31
U S Treasury And Government [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash equivalents		249
Fixed income securities	7,180	5,139
Short Term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash equivalents	3,745	6,327
Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities	13,083	14,732
Depository Receipts [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities	336	185
Commingled Pension Trust Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities	10,557	10,802
Fixed income securities	17,889	21,083
Other investments	2,670
Exchange Traded Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities	10,190	10,573
Preferred Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities		140
Consumer Loans Auto Financing Receivable [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities		330
Collateralized Mortgage Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities	608	682
All Other Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities	3,439	2,971
Federal Home Loan Mortgage Corporation [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities	276	73
Federal National Mortgage Association [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities	1,966	1,951
Government National Mortgage Association Certificates And Obligations Gnma Two [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities	384	123
Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities		160
Other Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities		33
Level 1 Inputs [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash equivalents	35	31
Equity securities	23,609	25,630
Total Plan investments	23,644	25,661
Level 1 Inputs [Member] | Foreign Exchange Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash equivalents	35	31
Level 1 Inputs [Member] | Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities	13,083	14,732
Level 1 Inputs [Member] | Depository Receipts [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities	336	185
Level 1 Inputs [Member] | Exchange Traded Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities	10,190	10,573
Level 1 Inputs [Member] | Preferred Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities		140
Level 2 Inputs [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash equivalents	3,745	6,576
Equity securities	10,557	10,802
Fixed income securities	31,742	32,545
Total Plan investments	46,044	49,923
Level 2 Inputs [Member] | U S Treasury And Government [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash equivalents		249
Fixed income securities	7,180	5,139
Level 2 Inputs [Member] | Short Term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash equivalents	3,745	6,327
Level 2 Inputs [Member] | Commingled Pension Trust Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities	10,557	10,802
Fixed income securities	17,889	21,083
Level 2 Inputs [Member] | Consumer Loans Auto Financing Receivable [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities		330
Level 2 Inputs [Member] | Collateralized Mortgage Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities	608	682
Level 2 Inputs [Member] | All Other Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities	3,439	2,971
Level 2 Inputs [Member] | Federal Home Loan Mortgage Corporation [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities	276	73
Level 2 Inputs [Member] | Federal National Mortgage Association [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities	1,966	1,951
Level 2 Inputs [Member] | Government National Mortgage Association Certificates And Obligations Gnma Two [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities	$ 384	123
Level 2 Inputs [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities		160
Level 2 Inputs [Member] | Other Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities		$ 33
Level 3 Inputs [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash equivalents
Equity securities
Fixed income securities
Total Plan investments	$ 2,670
Level 3 Inputs [Member] | Foreign Exchange Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash equivalents
Level 3 Inputs [Member] | U S Treasury And Government [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash equivalents
Fixed income securities
Level 3 Inputs [Member] | Short Term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Cash equivalents
Level 3 Inputs [Member] | Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities
Level 3 Inputs [Member] | Depository Receipts [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities
Level 3 Inputs [Member] | Commingled Pension Trust Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities
Fixed income securities
Other investments	$ 2,670
Level 3 Inputs [Member] | Exchange Traded Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities
Level 3 Inputs [Member] | Preferred Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Equity securities
Level 3 Inputs [Member] | Consumer Loans Auto Financing Receivable [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities
Level 3 Inputs [Member] | Collateralized Mortgage Obligations [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities
Level 3 Inputs [Member] | All Other Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities
Level 3 Inputs [Member] | Federal Home Loan Mortgage Corporation [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities
Level 3 Inputs [Member] | Federal National Mortgage Association [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities
Level 3 Inputs [Member] | Government National Mortgage Association Certificates And Obligations Gnma Two [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities
Level 3 Inputs [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities
Level 3 Inputs [Member] | Other Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fixed income securities