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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, 2020	Dec. 31, 2019
Amounts Recognized in the Statement of Financial Position
Current liabilities	$ (542,110)	$ (493,735)
Noncurrent liabilities	(10,263,216)	(9,230,131)
Net amount recognized	$ (10,805,326)	$ (9,723,866)

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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- References

No definition available.

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