Investments (Narratives) (Details) - USD ($)	3 Months Ended	12 Months Ended
Jun. 30, 2022	Mar. 31, 2022
Insurance Regulatory Authorites:
Assets held by insurance regulators	$ 23,800,000	$ 27,100,000
Available for sale securities:
Fair value of sold available for sale securites	54,100,000	352,300,000
Available-for-sale securities, gross realized gains	300,000	9,500,000
Available-for-sale securities, gross realized losses	100,000	$ 1,400,000
Other-than-temporary impairments	$ 17

Carrying amount of cash and investment securities on deposit with state regulatory authorities in connection with capital requirements.

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