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Employee Benefit Plans (Schedule of Long-term Rate of Return on Assets (Details) | 12 Months Ended
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Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items] |
Assumed long-term rate of return on assets | 6.75%
Fixed Income [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Plan, Target Plan Asset Allocations | 50.00%
One-Year Nominal Return | 4.84%
Annual Standard Deviation | 4.64%
U.S. Equity [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Plan, Target Plan Asset Allocations | 34.00%
Large Cap U.S. Growth Equities |
Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Plan, Target Plan Asset Allocations | 8.50%
One-Year Nominal Return | 8.14%
Annual Standard Deviation | 18.35%
Large Cap U.S. Value Equities |
Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Plan, Target Plan Asset Allocations | 8.50%
One-Year Nominal Return | 7.29%
Annual Standard Deviation | 16.27%
Large Cap U.S. Equities [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Plan, Target Plan Asset Allocations | 10.00%
One-Year Nominal Return | 7.42%
Annual Standard Deviation | 16.14%
Small Cap U.S. Equities [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Plan, Target Plan Asset Allocations | 7.00%
One-Year Nominal Return | 8.42%
Annual Standard Deviation | 20.02%
Non-U.S. Equity [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Plan, Target Plan Asset Allocations | 16.00%
International (Developed) [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Plan, Target Plan Asset Allocations | 15.00%
One-Year Nominal Return | 8.80%
Annual Standard Deviation | 19.35%
International (Emerging) [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Defined Benefit Plan, Target Plan Asset Allocations | 1.00%
One-Year Nominal Return | 10.49%
Annual Standard Deviation | 27.66%

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- 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 5 -Subparagraph (c)(i) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2446-114920 Reference 2: 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=58740216&loc=d3e1928-114920 + Details
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