Retirement and Security Bonus Plans Retirement and Security Bonus Plans (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
401k Employer matching contributions	$ 3,200	$ 3,000
Defined Contribution Retirement Plan Discretionary Employer Contribution	400	300
Employer contributions, profit sharing retirement plan	800	700
Retirement and Security Bonus Plans
Cash Surrender Value, Fair Value Disclosure	6,800
Security Bonus Plan	12,000
Security Bonus Liability, Current	200
Security bonus plan	$ 11,840	12,413
Security bonus plan
Retirement and Security Bonus Plans
Initial vesting percentage	25.00%
Minimum vesting period	5 years
Annual vesting percentage after initial period	5.00%
Expense recognized	$ 500	$ 600

Deferred Compensation Annual Vesting Percentage After Five Years

No definition available.

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- Definition

Deferred Compensation Minimum Vesting Period

+ References

No definition available.

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- Definition

Deferred Compensation Vesting Percentage Initial

+ References

No definition available.

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- Definition

Defined Contribution Retirement Plan Discretionary Employer Contribution

+ References

No definition available.

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- Definition

Security Bonus Liability, Current

+ References

No definition available.

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- Definition

Security Bonus Liability, Long-Term

+ References

No definition available.

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- Definition

Security bonus plan.

+ References

No definition available.

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- Definition

Fair value portion of the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

+ References

No definition available.

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- References

No definition available.

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- Definition

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
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- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

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