| **Pension and Other Post Retirement Benefit Plans - Schedule of Plan Assets by Category (Details)** | 12 Months Ended |
|-----------------------------------------------------------------------------------------------------|-----------------|
||
| **Defined Benefit Plan Disclosure [Line Items]**                                                    |            |   |
| Actual Plan Asset Allocations                                                                       | 100.00%         | 100.00% |
| Target Plan Asset Allocations                                                                       | 100.00%         | 100.00% |
| Cash and cash equivalents                                                                           |            |   |
| **Defined Benefit Plan Disclosure [Line Items]**                                                    |            |   |
| Actual Plan Asset Allocations                                                                       | 2.70%           | 1.30% |
| Target Plan Asset Allocations                                                                       | 2.00%           | 3.00% |
| Equity securities                                                                                   |            |   |
| **Defined Benefit Plan Disclosure [Line Items]**                                                    |            |   |
| Actual Plan Asset Allocations                                                                       | 62.20%          | 53.70% |
| Target Plan Asset Allocations                                                                       | 60.00%          | 51.00% |
| Debt securities                                                                                     |            |   |
| **Defined Benefit Plan Disclosure [Line Items]**                                                    |            |   |
| Actual Plan Asset Allocations                                                                       | 33.20%          | 43.00% |
| Target Plan Asset Allocations                                                                       | 36.00%          | 44.00% |
| Alternative investments                                                                             |            |   |
| **Defined Benefit Plan Disclosure [Line Items]**                                                    |            |   |
| Actual Plan Asset Allocations                                                                       | 1.90%           | 2.00% |
| Target Plan Asset Allocations                                                                       | 2.00%           | 2.00% |

| X                                                                                                                                                                         |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_DefinedBenefitPlanDisclosureLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Target allocation of investments of this type to total plan assets presented on a weighted average basis.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(i) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2446-114920
+ Details**Name:**us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations**Namespace Prefix:**us-gaap_**Data Type:**num:percentItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2446-114920Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920
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