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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

X

- Definition

Represents the fair value of plan assets subject to claims of creditors.

+ References

No definition available.

+ Details

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- Definition

-- None. No documentation exists for this element. --

+ References

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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

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