Allowance For Credit Losses (Table Text Block)	3 Months Ended
	Jun. 30, 2022
Allowance For Credit Loss [Abstract]
Accounts Receivable Allowance For Credit Loss [Table Text Block]	Allowance for Credit Losses     Trade Receivables   Investments, Fixed Maturities   Investments, other   Total     (Unaudited)     (in thousands) Balance as of March 31, 2021 $ 2,835 $ 1,320 $ 501 $ 4,656 Allowance change   (291)   (279)   4   (566) Write-offs against allowance   –   –   –   – Recoveries   –   –   –   – Balance as of June 30, 2021 $ 2,544 $ 1,041 $ 505 $ 4,090                   Balance as of March 31, 2022 $ 8,649 $ 60 $ 501 $ 9,210 Allowance change   (6,162)   17   (1)   (6,146) Write-offs against allowance   –   –   –   – Recoveries   –   –   –   – Balance as of June 30, 2022$ 2,487 $ 77 $ 500 $ 3,064