Deferred Policy Acquisition Costs, Net (Schedule of Deferred Policy Acquisition Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of year	$ 128,463	$ 131,430
Capitalization	16,999	25,201
Amortization expense	(24,238)	(28,168)
Balance, end of year	121,224	128,463
Payout Annuities
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of year	55,396	55,261
Capitalization	12,753	18,316
Amortization expense	(13,401)	(18,181)
Balance, end of year	54,748	55,396
Life Insurance
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of year	66,954	67,573
Capitalization	4,030	6,529
Amortization expense	(8,559)	(7,148)
Balance, end of year	62,425	66,954
Health Insurance
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of year	6,113	8,596
Capitalization	216	356
Amortization expense	(2,278)	(2,839)
Balance, end of year	$ 4,051	$ 6,113