Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flow from operating activities:
Net earnings	$ 147,173	$ 171,285
Adjustments to reconcile net earnings to cash provided by operations:
Depreciation	114,021	96,966
Amortization of deferred policy acquisition costs	7,942	4,778
Amortization of debt issuance costs	961	743
Interest credited to policy holders	5,059	5,484
Change in allowance for losses on trade receivables	21	(61)
Change in allowance for inventory reserves	1,221	(248)
Net gain on sale of real and personal property	(18,640)	(45,984)
Net (gain) loss on sale of investments	(2,406)	(1,453)
Deferred income tax	22,733	18,866
Net change in other operating assets and liabilities:
Reinsurance recoverables and trade receivables	(14,138)	(19,349)
Inventories	(4,391)	(140)
Prepaid expenses	39,828	56,624
Capitalization of deferred policy acquisition costs	(7,252)	(7,137)
Other assets	(3,392)	9,368
Related party assets	4,084	5,666
Accounts payable and accrued expenses	57,099	53,997
Policy benefits and losses, claims and loss expenses payable	1,373	11,669
Other policyholders' funds and liabilities	242	4,700
Deferred income	8,727	8,342
Related party liabilities	781	1,438
Net cash provided by operating activities	361,046	375,554
Cash flow from investing activities:
Property, plant and equipment	(437,287)	(452,572)
Short term investments	(277,038)	(73,517)
Fixed maturities investments	(166,648)	(47,072)
Equity securities		(967)
Preferred stock		(2)
Real estate	(3,495)	(23)
Mortgage loans	(62,572)	(82,839)
Proceeds from sale of:
Property, plant and equipment	147,196	194,133
Short term investments	279,341	88,332
Fixed maturities investments	55,946	30,340
Equity securities		799
Preferred stock	2,000
Real estate	831
Mortgage loans	94,015	14,306
Net cash used by investing activities	(367,711)	(329,082)
Cash flow from financing activities:
Borrowings from credit facilities	103,338	88,206
Principal repayments on credit facilities	(48,326)	(82,797)
Debt issuance costs	(223)
Capital lease payments	(37,405)	(33,974)
Employee Stock Ownership Plan	(1,393)	(1,388)
Securitization deposits	93
Common stock dividends paid	(19,586)
Investment contract deposits	74,157	33,768
Investment contract withdrawals	(14,051)	(13,215)
Net cash provided by (used in) financing activities	56,604	(9,400)
Effects of exchange rate on cash	(4,397)	(3,360)
Increase (decrease) in cash and cash equivalents	45,542	33,712
Cash and cash equivalents at the beginning of period	600,646	441,850
Cash and cash equivalents at the end of the period	$ 646,188	$ 475,562