Statutory Financial Information of Insurance Subsidiaries (Table Text Block)	12 Months Ended
Mar. 31, 2021
Insurance [Abstract]
Statutory Financial Information of Insurance Subsidiaries	Years Ended December 31, 2020 2019 2018 (In thousands) Repwest: Audited statutory net income $ 22,898 $ 28,614 $ 23,960 Audited statutory capital and surplus 227,380 226,999 216,763 ARCOA: Audited statutory net income 2,438 2,906 1,612 Audited statutory capital and surplus 15,928 12,851 9,390 Oxford: Audited statutory net income 6,296 18,599 11,367 Audited statutory capital and surplus 218,301 223,264 203,723 CFLIC: Audited statutory net income 8,082 8,043 8,735 Audited statutory capital and surplus 25,980 26,305 27,232 NAI: Audited statutory net income 2,127 1,942 1,436 Audited statutory capital and surplus 13,980 13,371 12,817

- Definition

Tabular disclosure of how the entity's reporting under GAAP as of the balance sheet date differs from the results based on prescribed and permitted accounting practices of the state or country of domicile in which a relevant statutory filing is made, or differences in results based on the National Association of Insurance Commissioners (NAIC) prescribed practices, or a combination thereof. Describes the accounting practices used and the related monetary effect on statutory surplus, net income, and risk-based capital. If an insurance enterprise's risk-based capital would have triggered a regulatory event had it not used a permitted practice, that fact is disclosed in the financial statements. Permitted statutory accounting practices include practices not prescribed but allowed by the domiciliary state insurance department regulatory authority.

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