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Employee Benefit Plans Employee Benefit Plans 12 (Details) - SERP - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Balance in Rabbi Trust |  |
Balance in Rabbi Trust | $ 12,000 |
Fair value of assets held in Rabbi Trust | 0 | $ 0
Rabbi Trust | Level 3 |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 0 | 0
Rabbi Trust | Level 1 |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 11,996 | 9,866
Rabbi Trust | Level 2 |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 0 | 0
Rabbi Trust | Cash equivalents | Level 3 |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 0 | 0
Rabbi Trust | Cash equivalents | Level 1 |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 46 | 39
Rabbi Trust | Cash equivalents | Level 2 |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 0 | 0
Rabbi Trust | Fixed income fund | Level 3 |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 0 | 0
Rabbi Trust | Fixed income fund | Level 1 |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 4,801 | 3,903
Rabbi Trust | Fixed income fund | Level 2 |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 0 | 0
Rabbi Trust | Equity securities | Level 3 |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 0 | 0
Rabbi Trust | Equity securities | Level 1 |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 7,149 | 5,924
Rabbi Trust | Equity securities | Level 2 |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 0 | 0
Fair Value | Rabbi Trust |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 11,996 | 9,866
Fair Value | Rabbi Trust | Cash equivalents |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 46 | 39
Fair Value | Rabbi Trust | Fixed income fund |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | 4,801 | 3,903
Fair Value | Rabbi Trust | Equity securities |  |
Balance in Rabbi Trust |  |
Fair value of assets held in Rabbi Trust | $ 7,149 | $ 5,924

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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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