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Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Mar. 31, 2011
Cash flow from operating activities: |  |  |
Net earnings | $ 264,708 | $ 205,367 | $ 183,575
Adjustments to reconcile net earnings to cash provided by operations: |  |  |
Depreciation | 260,492 | 229,789 | 212,324
Amortization of deferred policy acquisition costs | 17,376 | 13,791 | 9,494
Change in allowance for losses on trade receivables | (134) | (208) | 28
Change in allowance for inventory reserves | 1,133 | 1,382 | (674)
Net of (gains) losses on sale of real and personal property | (22,496) | (20,888) | (23,058)
Net (gain) loss on sale of investments | (8,323) | (5,579) | (1,135)
Deferred Income Taxes and Tax Credits | 13,518 | 104,360 | 80,898
Net change in other operating assets and liabilities: |  |  |
Reinsurance recoverables and trade receivables | 36,322 | (77,115) | (5,966)
Inventories | 1,206 | (173) | (6,431)
Prepaid expenses | (15,587) | 15,748 | (4,244)
Capitalization of deferred policy acquisition costs | (50,640) | (23,166) | (25,239)
Other assets | 21,556 | 5,992 | 28,715
Related party assets | 133,672 | (14,210) | (87)
Accounts payable and accrued expenses | 40,032 | 19,469 | 12,547
Policy benefits and losses, claims and loss expenses payable | (30,478) | 212,330 | 109,334
Other policyholders' funds and liabilities | 21 | (1,458) | 566
Deferred income | (1,312) | 4,367 | 1,967
Related party liabilities | 464 | 44 | 249
Net cash provided by operating activities | 661,530 | 669,842 | 572,863
Purchase of: |  |  |
Property, plant and equipment | (655,984) | (589,799) | (480,418)
Short term investments | (411,638) | (291,622) | (260,766)
Fixed maturities investments | (443,262) | (220,104) | (215,931)
Equity securities | (16,289) | (9,048) | (11,550)
Preferred stock | (6,296) | (2,717) | (14,352)
Real estate | (1,073) | (7,829) | (193)
Mortgage loans | (80,711) | (127,163) | (38,558)
Other investments | 0 | 0 | (2,000)
Proceeds from sale of: |  |  |
Property, plant and equipment | 220,699 | 168,912 | 180,411
Short term investments | 417,520 | 300,893 | 317,213
Fixed maturities investments | 160,806 | 128,486 | 131,981
Equity securities | 372 | 10,222 | 1,198
Preferred stock | 7,258 | 2,352 | 1,914
Real estate | 671 | 440 | 1,925
Mortgage loans | 95,714 | 54,840 | 15,156
Net cash used by investing activities | (712,213) | (582,137) | (373,970)
Cash flow from financing activities: |  |  |
Borrowings from credit facilities | 270,546 | 237,780 | 321,862
Principal repayments on credit facilities | (257,957) | (201,888) | (288,882)
Debt issuance costs | (2,223) | (2,004) | (1,987)
Capital lease payments | (26,877) | (8,328) | (11,522)
Leveraged Employee Stock Ownership Plan - repayments from loan | 692 | 984 | 1,172
Securitization deposits | 1,195 | 42,088 | (46,031)
Preferred stock redemption paid | 0 | (144,289) | 0
Preferred stock dividends paid | 0 | (2,913) | (12,412)
Common stock dividends paid | (97,421) | (19,484) | 0
Contribution to related party | 0 | (518) | 0
Investment contract deposits | 301,729 | 13,854 | 11,580
Investment contract withdrawals | (31,901) | (28,027) | (34,548)
Net cash used by financing activities | 157,783 | (112,745) | (60,768)
Effects of exchange rate on cash | (536) | (294) | 271
Increase (decrease) in cash and cash equivalents | 106,564 | (25,334) | 138,396
Cash and cash equivalents at the beginning of period | 357,180 | 382,514 | 244,118
Cash and cash equivalents at the end of the period | $ 463,744 | $ 357,180 | $ 382,514

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- Definition The increase (decrease) in other insurance liabilities during the period which liabilities are not otherwise defined in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
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