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Employee Benefit Plans (Schedule of Discount and Compensation Rates) (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Pension Benefit Plan [Member]
Weighted Average Assumptions:
Expected Return on Plan Assets	7.50%	7.50%	7.50%
Discount Rate for:
Benefit Obligation	4.26%	3.91%	4.87%
Benefit Cost	3.91%	4.87%	3.99%
Compensation Increase for:
Benefit Obligation	3.00%	3.00%	3.00%
Benefit Cost	3.00%	3.00%	3.00%
Other Benefits Plan [Member]
Weighted Average Assumptions:
Expected Return on Plan Assets	7.50%	7.50%	7.50%
Discount Rate for:
Benefit Obligation	4.26%	3.91%	4.87%
Benefit Cost	3.91%	4.87%	3.99%
Compensation Increase for:
Benefit Obligation	3.00%	3.00%	3.00%
Benefit Cost	3.00%	3.00%	3.00%

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- Definition

Compensation Increase for:

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- Definition

Weighted Average Assumptions:

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- Definition

The interest rate used to adjust for the time value of money for the plan.

+ 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 (k)(1)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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Expected rate of compensation increases (for pay-related plans).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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The interest rate used to adjust for the time value of money.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(1)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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- Definition

An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Expected Long-Term Rate of Return on Plan Assets
-URI http://asc.fasb.org/extlink&oid=6512046

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Expected rate of compensation increases (for pay-related plans).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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