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Compensation Plans (Tables) | 12 Months Ended
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Dec. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Roll-forward of outstanding restricted stock grants issued | The following table represents a roll-forward of outstanding restricted stock and related activity for the year ended December 31, 2023:
| Shares |  | Weighted-Average Grant Date Price per Share
Outstanding Restricted Stock as of December 31, 2022 | 219,459 |  |  | $ | 165.62 |
Grants issued | 59,578 |  |  | 186.85 |
Grants vested | (81,745) |  |  | 183.64 |
Grants forfeited | (7,120) |  |  | 161.14 |
Outstanding Restricted Stock as of December 31, 2023 | 190,172 |  |  | $ | 164.69 |
Expense recognition of deferred compensation | The recognition of compensation expense related to deferred compensation over the remaining vesting periods is as follows:
2024 |  | 2025 |  | 2026 |  | 2027 |  | 2028 |  | Thereafter |  | Total
$ | 8,956,756 |  |  | $ | 4,603,980 |  |  | $ | 1,299,220 |  |  | $ | 366,417 |  |  | $ | 165,854 |  |  | $ | 191 |  |  | $ | 15,392,418 |
Schedule of Grants Issued and Grant Date Fair Value | The following table represents DHIL common shares issued as part of the Company’s incentive compensation program during the years ended December 31, 2023, 2022, and 2021:
| Shares Issued |  | Grant Date Value
December 31, 2023 | — |  |  | — |
December 31, 2022 | 2,743 |  |  | $ | 487,870 |
December 31, 2021 | 3,681 |  |  | $ | 529,806 |
Summary of company expenses attributable to the 401(k) Plan | The following table summarizes the Company’s expenses attributable to the 401(k) plan during the years ended December 31, 2023, 2022 and 2021:
| Shares Issued |  | Share Contributions |  | Cash Contributions |  | Total Company Contributions
December 31, 2023 | 99 |  |  | $ | 16,344 |  |  | $ | 3,067,630 |  |  | $ | 3,083,974 |
December 31, 2022 | 211 |  |  | 37,313 |  |  | 2,910,156 |  |  | 2,947,469 |
December 31, 2021 | 506 |  |  | $ | 87,667 |  |  | $ | 2,779,641 |  |  | $ | 2,867,308 |

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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the total intrinsic value of options exercised (or share units converted), share-based liabilities paid, and the total fair value of shares vested during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (d)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Tabular disclosure of cost not yet recognized and weighted-average period over which cost is expected to be recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (i) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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