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Statutory Financial Information of Insurance Subsidiaries (Net income (loss) Capital and Surplus (Details) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
Repwest [Member] |  |  |
Statutory financial information of insurance subsidiaries: |  |  |
Audit statutory net income (loss) | $ 43,247 | $ 43,028 | $ 34,963
Audited statutory capital and surplus | 383,088 | 342,026 | 294,515
ARCOA [Member] |  |  |
Statutory financial information of insurance subsidiaries: |  |  |
Audit statutory net income (loss) | 1,727 | 1,891 | 2,319
Audited statutory capital and surplus | 18,094 | 16,063 | 13,340
Oxford [Member] |  |  |
Statutory financial information of insurance subsidiaries: |  |  |
Audit statutory net income (loss) | 759 | 212 | 771
Audited statutory capital and surplus | 235,319 | 247,039 | 227,667
CFLIC [Member] |  |  |
Statutory financial information of insurance subsidiaries: |  |  |
Audit statutory net income (loss) |  | 887 | 1,017
Audited statutory capital and surplus | 23,975 | 22,478 | 20,591
NAI [Member] |  |  |
Statutory financial information of insurance subsidiaries: |  |  |
Audit statutory net income (loss) | $ 3,854 | 2,050 | 3,637
Audited statutory capital and surplus |  | $ 9,775 | $ 8,906

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- Definition The amount of statutory capital and surplus (stockholders' equity) as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(23)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477908/944-505-50-1 + Details
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- Definition Amount of net income for the period determined using accounting principles prescribed or permitted by insurance regulators. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(23)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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