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v3.19.3.a.u2

Employee Benefit Plan (Details) | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) ExecutiveOfficers | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Profit Sharing and Four Hundred One K Plan [Member] |  |  |
Employee Benefit Plan (Textual) |  |  |
Defined benefit plan, annual cost | $ 693,000 | $ 587,000 | $ 476,000
Supplemental Executive Retirement Plan [Member] |  |  |
Employee Benefit Plan (Textual) |  |  |
Defined benefit plan, annual cost | $ 657,000 | 940,000 | $ 792,000
Number of executive officers | ExecutiveOfficers | 24 |  |
Accrued benefit obligation | $ 6,700,000 | $ 6,100,000 |

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