Income Taxes - Schedule of Income Tax Reconciliation (Details) - USD ($) |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2026 |
Dec. 31, 2025 |
Sep. 30, 2025 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Dec. 31, 2024 |
Sep. 30, 2024 |
Jun. 30, 2024 |
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Amount | |||||||||||
| US federal statutory tax rate | $ 9,500,928 | $ 23,376,151 | $ 20,791,004 | ||||||||
| State and local income taxes, net of federal tax effect | 800,353 | 2,748,295 | 3,254,363 | ||||||||
| Historic tax credits | (961,138) | (871,938) | (427,512) | ||||||||
| Energy-related tax credits | (612,353) | (887,089) | (451,800) | ||||||||
| Other | (44,785) | (163,685) | (154,779) | ||||||||
| Forfeiture of the $20.45 Performance Shares and the $16.35 Performance Shares | 0 | (2,587,552) | 0 | ||||||||
| Permanent effect of the bargain purchase of loans | 0 | 0 | (1,090,068) | ||||||||
| Excess tax benefits related to equity awards | (578,321) | (182,098) | (347,806) | ||||||||
| Other | 764,062 | 676,757 | 413,831 | ||||||||
| Changes in unrecognized tax benefits | 1,619,698 | 17,537 | 16,406 | ||||||||
| Other adjustments | 168,047 | (54,152) | (45,201) | ||||||||
| Income tax expenses (benefit) | $ 9,618,000 | $ (4,000) | $ 358,000 | $ 684,000 | $ 10,434,000 | $ 2,706,000 | $ 5,882,000 | $ 3,050,000 | $ 10,656,491 | $ 22,072,226 | $ 21,958,438 |
| Percent | |||||||||||
| US federal statutory tax rate | 21.00% | 21.00% | 21.00% | ||||||||
| State and local income taxes, net of federal tax effect | 1.80% | 2.50% | 3.30% | ||||||||
| Historic tax credits | (2.10%) | (0.80%) | (0.40%) | ||||||||
| Energy-related tax credits | (1.40%) | (0.80%) | (0.50%) | ||||||||
| Other | (0.10%) | (0.10%) | (0.20%) | ||||||||
| Forfeiture of the $20.45 Performance Shares and the $16.35 Performance Shares | 0.00% | (2.30%) | 0.00% | ||||||||
| Permanent effect of the bargain purchase of loans | 0.00% | 0.00% | (1.10%) | ||||||||
| Excess tax benefits related to equity awards | (1.30%) | (0.20%) | (0.40%) | ||||||||
| Other | 1.70% | 0.60% | 0.40% | ||||||||
| Changes in unrecognized tax benefits | 3.60% | 0.00% | 0.00% | ||||||||
| Other adjustments | 0.40% | 0.00% | 0.00% | ||||||||
| Effective tax rate | 23.60% | 19.80% | 22.20% | ||||||||
| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of reported income tax benefit (expense) from difference to income tax expense (benefit) computed by applying statutory federal (national) income tax rate to pretax income (loss) from continuing operation, attributable to energy-related tax credit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Percentage of reported income tax benefit (expense) from difference to income tax expense (benefit) computed by applying statutory federal (national) income tax rate to pretax income (loss) from continuing operation, attributable to energy-related tax credit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other tax credits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in income tax contingencies. Including, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other tax credits. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Historic Tax Credits, Amount No definition available.
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| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Historic Tax Credits, Percent No definition available.
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| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Permanent Effect Of The Bargain Purchase Of Loans, Amount No definition available.
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| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Permanent Effect Of The Bargain Purchase Of Loans, Percent No definition available.
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| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Tax Credit, Equity Cancellation, Amount No definition available.
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| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Tax Credit, Equity Cancellation, Percent No definition available.
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