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Employee Benefit Plans (Summary of the Fair Value Measurements by Type of Asset) (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | --- | ---
Total | $ 71,174 | $ 72,972 | $ 70,627
Cash [Member] |  |  |
Total | 283 | 268 |
U.S. Large Cap Growth [Member] |  |  |
Total | 6,507 | 7,165 |
U.S. Large Cap Value [Member] |  |  |
Total | 6,401 | 7,066 |
U.S. Small/Mid Cap Growth [Member] |  |  |
Total | 2,769 | 2,950 |
U.S. Small/Mid Cap Value [Member] |  |  |
Total | 2,649 | 2,721 |
Non-U.S. Core [Member] |  |  |
Total | 10,474 | 10,317 |
U.S. Large Cap Passive [Member] |  |  |
Total | 7,153 | 7,192 |
Emerging Markets [Member] |  |  |
Total | 599 | 703 |
U.S. Core Opportunistic [Member] |  |  |
Total | 23,881 | 24,019 |
U.S. Passive [Member] |  |  |
Total | 9,328 | 9,275 |
Opportunistic [Member] |  |  |
Total | 1,130 | 1,296 |
Fair Value, Inputs, Level 1 [Member] |  |  |
Total | 283 | 268 |
Fair Value, Inputs, Level 1 [Member] | Cash [Member] |  |  |
Total | $ 283 | $ 268 |
Fair Value, Inputs, Level 1 [Member] | U.S. Large Cap Growth [Member] |  |  |
Total |  |  |
Fair Value, Inputs, Level 1 [Member] | U.S. Large Cap Value [Member] |  |  |
Total |  |  |
Fair Value, Inputs, Level 1 [Member] | U.S. Small/Mid Cap Growth [Member] |  |  |
Total |  |  |
Fair Value, Inputs, Level 1 [Member] | U.S. Small/Mid Cap Value [Member] |  |  |
Total |  |  |
Fair Value, Inputs, Level 1 [Member] | Non-U.S. Core [Member] |  |  |
Total |  |  |
Fair Value, Inputs, Level 1 [Member] | U.S. Large Cap Passive [Member] |  |  |
Total |  |  |
Fair Value, Inputs, Level 1 [Member] | Emerging Markets [Member] |  |  |
Total |  |  |
Fair Value, Inputs, Level 1 [Member] | U.S. Core Opportunistic [Member] |  |  |
Total |  |  |
Fair Value, Inputs, Level 1 [Member] | U.S. Passive [Member] |  |  |
Total |  |  |
Fair Value, Inputs, Level 1 [Member] | Opportunistic [Member] |  |  |
Total |  |  |
Fair Value, Inputs, Level 2 [Member] |  |  |
Total | $ 70,891 | $ 72,704 |
Fair Value, Inputs, Level 2 [Member] | Cash [Member] |  |  |
Total |  |  |
Fair Value, Inputs, Level 2 [Member] | U.S. Large Cap Growth [Member] |  |  |
Total | $ 6,507 | $ 7,165 |
Fair Value, Inputs, Level 2 [Member] | U.S. Large Cap Value [Member] |  |  |
Total | 6,401 | 7,066 |
Fair Value, Inputs, Level 2 [Member] | U.S. Small/Mid Cap Growth [Member] |  |  |
Total | 2,769 | 2,950 |
Fair Value, Inputs, Level 2 [Member] | U.S. Small/Mid Cap Value [Member] |  |  |
Total | 2,649 | 2,721 |
Fair Value, Inputs, Level 2 [Member] | Non-U.S. Core [Member] |  |  |
Total | 10,474 | 10,317 |
Fair Value, Inputs, Level 2 [Member] | U.S. Large Cap Passive [Member] |  |  |
Total | 7,153 | 7,192 |
Fair Value, Inputs, Level 2 [Member] | Emerging Markets [Member] |  |  |
Total | 599 | 703 |
Fair Value, Inputs, Level 2 [Member] | U.S. Core Opportunistic [Member] |  |  |
Total | 23,881 | 24,019 |
Fair Value, Inputs, Level 2 [Member] | U.S. Passive [Member] |  |  |
Total | 9,328 | 9,275 |
Fair Value, Inputs, Level 2 [Member] | Opportunistic [Member] |  |  |
Total | $ 1,130 | $ 1,296 |

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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=49178875&loc=d3e12355-114930 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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