Compensation Plans - Narrative (Detail) - USD ($)	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred compensation equity	$ (24,476,298)		$ (15,268,705)
Fully vested employee elected deferral period	5 years
Deferred compensation liability	$ 33,968,699		$ 37,348,294
Proceeds received under employee stock purchase plan	$ 371,744	$ 342,528
Employer 401(k) match, contributions equal to	250.00%
401(k) plan, percent of employee's compensation matched	6.00%
2014 Equity and Cash Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares available for issuance (in shares)	111,389
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Purchased During Period, Shares, Employee Stock Purchase Plans	2,335	2,583
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent	85.00%
Proceeds received under employee stock purchase plan	$ 400,000	$ 300,000
Share-based payment expense	$ 100,000	$ 100,000

Deferred Compensation Arrangement, Fully Vested Employee Elected Deferral Period, Minimum

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- Definition

Proceeds Received Under Employee Stock Purchase Plan

+ References

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- Definition

Stock Purchased During Period, Shares, Employee Stock Purchase Plans

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

Value of stock issued under share-based plans to employees or officers which is the unearned portion, accounted for under the fair value method.

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

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- Definition

Percentage employer matches of the employee's percentage contribution matched.

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No definition available.

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

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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.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

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