Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	3 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flow from operating activities:
Net earnings	$ 78,223	$ 66,502
Adjustments to reconcile net earnings to cash provided by operations:
Depreciation	54,068	52,977
Amortization of deferred policy acquisition costs	4,375	2,193
Change in allowance for losses on trade receivables	135	(28)
Change in allowance for inventory reserves	1,377	494
Net gain on sale of real and personal property	(9,710)	(8,388)
Net gain on sale of investments	(3,516)	(1,015)
Deferred income taxes	32,446	25,230
Net change in other operating assets and liabilities:
Reinsurance recoverables and trade receivables	(37,253)	(15,345)
Inventories	(393)	(3,283)
Prepaid expenses	1,150	(2,331)
Capitalization of deferred policy acquisition costs	(4,518)	(3,663)
Other assets	8,625	(809)
Related party assets	(3,198)	4,691
Accounts payable and accrued expenses	17,534	38,968
Policy benefits and losses, claims and loss expenses payable	4,542	10,240
Other policyholders' funds and liabilities	(1,095)	(100)
Deferred income	8,328	6,727
Related party liabilities	245	791
Net cash provided by operating activities	151,365	173,851
Purchase of:
Property, plant and equipment	(215,779)	(138,902)
Short term investments	(66,363)	(51,827)
Real estate	(12)	(134)
Mortgage loans	(36,202)	(51)
Proceeds from sale of:
Property, plant and equipment	55,010	47,225
Short term investments	79,877	84,427
Equity securities	8,800	133
Real estate	34	1,588
Mortgage loans	17,992	721
Net cash used by investing activities	(173,967)	(99,046)
Cash flow from financing activities:
Borrowings from credit facilities	58,558	91,957
Principal repayments on credit facilities	(42,252)	(106,679)
Debt issuance costs	(560)	(89)
Capital lease payments	(1,727)	(6,951)
Leveraged Employee Stock Ownership Plan - repayments from loan	280	295
Securitization deposits	29,914	0
Preferred stock redemption paid	(144,289)	0
Preferred stock dividends paid	(3,077)	(3,156)
Contribution to related party	(518)	0
Investment contract deposits	2,509	3,018
Investment contract withdrawals	(8,023)	(8,685)
Net cash used by financing activities	(109,185)	(30,290)
Effects of exchange rate on cash	44	(519)
Increase (decrease) in cash and cash equivalents	(131,743)	43,996
Cash and cash equivalents at the beginning of period	375,496	244,188
Cash and cash equivalents at the end of the period	243,753	288,114
Fixed maturities investments
Purchase of:
Payments to acquire investments	(75,059)	(66,227)
Proceeds from sale of:
Proceeds from sale of acquired investments	66,035	33,701
Equity security investments
Purchase of:
Payments to acquire investments	(8,759)	(6,225)
Preferred stock investments
Purchase of:
Payments to acquire investments	(541)	(3,475)
Proceeds from sale of:
Proceeds from sale of acquired investments	$ 1,000	$ 0