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Retirement Plans (Notes)	12 Months Ended
	Dec. 31, 2019
Retirement Benefits [Abstract]
Retirement Plans	Retirement Plans The Company has a defined contribution retirement plan which covers substantially all employees and which provides for a Company contribution equal to 4% of each participant’s compensation and a Company matching contribution of up to 100% of the first 3% and 50% of the next 2% of pre tax contributions made by each participant.  Employee contributions are limited to the 402(g) limit of compensation.  The total expense for the plan amounted to $2,493,000, $1,881,000 and $1,630,000 in 2019, 2018 and 2017, respectively.  The Company also has two agreements in place to pay $50,000 annually for 20 years from the retirement date to the surviving spouse of a deceased former senior officer of the Company and to a senior officer that retired December 31, 2013.  Total expense under these two agreements amounted to $32,000, $36,000 and $40,000 in 2019, 2018 and 2017 respectively. The current liability recorded for these two agreements was $465,000 and $533,000, as of December 31, 2019 and 2018, respectively.

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- References

No definition available.

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- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

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