Employee Benefit Plans (Schedule of Target Asset Allocations) (Details)
|
Dec. 31, 2019 |
| Cash and Cash Equivalents [Member] |
|
| Defined Benefit Plan Disclosure [Line Items] |
|
| Defined Benefit Plan, Target Plan Asset Allocations |
5.00%
|
| Cash and Cash Equivalents [Member] | Minimum [Member] |
|
| Defined Benefit Plan Disclosure [Line Items] |
|
| Defined Benefit Plan, Target Plan Asset Allocations |
0.00%
|
| Cash and Cash Equivalents [Member] | Maximum [Member] |
|
| Defined Benefit Plan Disclosure [Line Items] |
|
| Defined Benefit Plan, Target Plan Asset Allocations |
20.00%
|
| Fixed Income Securities [Member] |
|
| Defined Benefit Plan Disclosure [Line Items] |
|
| Defined Benefit Plan, Target Plan Asset Allocations |
40.00%
|
| Fixed Income Securities [Member] | Minimum [Member] |
|
| Defined Benefit Plan Disclosure [Line Items] |
|
| Defined Benefit Plan, Target Plan Asset Allocations |
30.00%
|
| Fixed Income Securities [Member] | Maximum [Member] |
|
| Defined Benefit Plan Disclosure [Line Items] |
|
| Defined Benefit Plan, Target Plan Asset Allocations |
50.00%
|
| Equity Securities [Member] |
|
| Defined Benefit Plan Disclosure [Line Items] |
|
| Defined Benefit Plan, Target Plan Asset Allocations |
55.00%
|
| Equity Securities [Member] | Minimum [Member] |
|
| Defined Benefit Plan Disclosure [Line Items] |
|
| Defined Benefit Plan, Target Plan Asset Allocations |
45.00%
|
| Equity Securities [Member] | Maximum [Member] |
|
| Defined Benefit Plan Disclosure [Line Items] |
|
| Defined Benefit Plan, Target Plan Asset Allocations |
65.00%
|