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Employee Benefit Plans - Summary of Amounts Recognized in Statement of Financial Position (Detail) - Supplemental Employee Retirement Plan [Member] - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Amounts Recognized in the Statement of Financial Position
Current liabilities	$ (493,735)	$ (512,786)
Noncurrent liabilities	(9,230,131)	(8,526,039)
Net amount recognized	$ (9,723,866)	$ (9,038,825)

X

- Definition

Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as current. Excludes other postretirement benefit plan.

+ References

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X

- Definition

Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as noncurrent. Excludes other postretirement benefit plan.

+ References

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- Definition

Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans.

+ References

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