Fair Value Measurements (Table Text Block)

3 Months Ended

12 Months Ended

Sep. 30, 2023

Mar. 31, 2023

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]

Financial Instruments, Carrying and Estimated fair values

		Fair Value Hierarchy
		Carrying								Total Estimated
As of September 30, 2023		Value		Level 1		Level 2		Level 3		Fair Value
		(Unaudited)
Assets		(In thousands)
Reinsurance recoverables and trade receivables, net	$	212,565	$	–	$	–	$	212,565	$	212,565
Mortgage loans, net		550,913		–		–		521,831		521,831
Other investments		88,712		–		–		88,712		88,712
Total	$	852,190	$	–	$	–	$	823,108	$	823,108
Liabilities
Notes, loans and finance leases payable	$	6,436,800	$	–	$	5,961,511	$	–	$	5,961,511
Total	$	6,436,800	$	–	$	5,961,511	$	–	$	5,961,511

		Fair Value Hierarchy
		Carrying								Total Estimated
As of March 31, 2023		Value		Level 1		Level 2		Level 3		Fair Value
		(In thousands)
Assets
Reinsurance recoverables and trade receivables, net	$	189,498	$	–	$	–	$	189,498	$	189,498
Mortgage loans, net		466,531		–		–		444,957		444,957
Other investments		109,009		–		–		109,009		109,009
Total	$	765,038	$	–	$	–	$	743,464	$	743,464
Liabilities
Notes, loans and finance leases payable		6,143,350		–		5,710,735		–		5,710,735
Total	$	6,143,350	$	–	$	5,710,735	$	–	$	5,710,735

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis

As of September 30, 2023		Total		Level 1		Level 2		Level 3
		(Unaudited)
Assets		(In thousands)
Short-term investments	$	1,808,130	$	1,807,142	$	988	$	–
Fixed maturities - available for sale		2,472,128		168,287		2,303,782		59
Preferred stock		19,991		19,991		–		–
Common stock		42,045		42,045		–		–
Derivatives		22,854		10,526		12,328		–
Total	$	4,365,148	$	2,047,991	$	2,317,098	$	59
Liabilities
Embedded derivatives	$	9,630	$	–	$	–	$	9,630
Total	$	9,630	$	–	$	–	$	9,630

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

As of March 31, 2023		Total		Level 1		Level 2		Level 3
		(In thousands)
Assets
Short-term investments	$	1,809,441	$	1,808,797	$	644	$	–
Fixed maturities - available for sale		2,709,037		251,832		2,457,146		59
Preferred stock		21,982		21,982		–		–
Common stock		39,375		39,375		–		–
Derivatives		9,606		4,295		5,311		–
Total	$	4,589,441	$	2,126,281	$	2,463,101	$	59