Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Cash flow from operating activities:
Net earnings	$ 885,261	$ 1,036,539
Adjustments to reconcile net earnings to cash provided by operations:
Depreciation	544,176	519,181
Amortization of deferred policy acquisition costs	21,623	23,520
Amortization of premiums and accretion of discounts related to investments, inc	15,232	14,486
Amortization of debt issuance costs	5,694	4,200
Interest credited to policyholders	39,048	47,181
Change in allowance for losses on trade receivables	(4,617)	1,243
Change in allowance for inventory reserves	6,991	9,799
Net gain on sale of real and personal property	(199,196)	(157,980)
Net losses on disposal of real estate	5,038	(2,930)
Net (gain) loss on sale of investments	8,695	(3,495)
Net losses on equity investments	10,906	(3,695)
Deferred income tax	121,707	130,760
Net change in other operating assets and liabilities:
Reinsurance recoverables and trade receivables	25,853	(7,371)
Inventories	1,682	(70,796)
Prepaid expenses	7,867	257,591
Capitalization of deferred policy acquisition costs	(20,406)	(25,703)
Other assets	2,683	1,178
Related party assets	(26,775)	(18,683)
Accounts payable and accrued expenses	62,430	33,258
Policy benefits and losses, claims and loss expenses payable	3,490	6,411
Other policyholders' funds and liabilities	1,767	(2,810)
Deferred income	(2,168)	(526)
Related party liabilities	(1,301)	(2,207)
Net cash provided by operating activities	1,515,680	1,789,151
Cash flow from investing activities:
Escrow deposits	159	5,695
Purchase of:
Property, plant and equipment	(2,076,424)	(1,652,984)
Short term investments	(49,801)	(31,074)
Fixed maturity investments	(491,431)	(448,283)
Equity securities	(4,828)	(1,380)
Preferred stock	0	(8,000)
Real estate	(7,854)	(190)
Mortgage loans	(148,017)	(131,633)
Proceeds from sale of:
Property, plant and equipment	533,595	483,783
Short term investments	67,062	20,669
Fixed maturity investments	148,290	284,347
Equity securities	1,187	2,026
Preferred stock	0	2,000
Real estate	0
Mortgage loans	156,292	28,064
Net cash used by investing activities	(1,871,770)	(1,446,960)
Cash flow from financing activities:
Borrowings from credit facilities	975,966	1,202,412
Principal repayments on credit facilities	(695,321)	(333,419)
Payment of debt issuance costs	(4,962)	(8,006)
Capital lease payments	(95,290)	(129,150)
Securitization deposits	137	0
Voting Common Stock dividends paid	(19,608)	(29,412)
Series N Non-Voting Common Stock dividends	(7,059)	0
Investment contract deposits	258,157	271,657
Investment contract withdrawals	(236,742)	(177,777)
Net cash provided by (used in) financing activities	175,278	796,305
Effects of exchange rate on cash	(12,706)	(5,046)
Increase (decrease) in cash and cash equivalents	(193,518)	1,133,450
Cash and cash equivalents at beginning of period	2,704,137	1,194,012
Cash and cash equivalents at the end of period	$ 2,510,619	$ 2,327,462