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Employee Benefit Plans Employee Benefit Plans 12 (Details) - SERP - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Balance in Rabbi Trust
Balance in Rabbi Trust	$ 21,600
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	21,553	16,412
Rabbi Trust | Level 2
Balance in Rabbi Trust
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 | Cash equivalents | Level 1
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	72	166
Rabbi Trust | Cash equivalents | 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 | Fixed income fund | Level 1
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	8,427	6,251
Rabbi Trust | Fixed income fund | 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 | Equity securities | Level 1
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	13,054	9,995
Rabbi Trust | Equity securities | 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
Fair Value | Rabbi Trust
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	21,553	16,412
Fair Value | Rabbi Trust | Cash equivalents
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	72	166
Fair Value | Rabbi Trust | Fixed income fund
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	8,427	6,251
Fair Value | Rabbi Trust | Equity securities
Balance in Rabbi Trust
Fair value of assets held in Rabbi Trust	$ 13,054	$ 9,995

X

- Definition

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

+ References

No definition available.

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
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