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Schedule I - Condensed Financial Information of AMERCO (Statements of Cash Flow) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2019
Cash flow from operating activities: |  |  |
Net earnings | $ 610,856 | $ 442,048 | $ 370,857
Earnings from consolidated subsidiaries | 0 | 0 | 0
Adjustments to reconcile net earnings to cash provided by operations: |  |  |
Depreciation | 664,001 | 664,120 | 581,025
Net loss on sales of investments | (10,058) | (13,596) | (2,663)
Deferred income taxes | 68,411 | 317,893 | 106,811
Net change in other operating assets and liabilities: |  |  |
Reinsurance recoverables and trade receivables | (39,516) | 38,129 | (31,365)
Prepaid expenses | 94,359 | (391,120) | (8,620)
Other assets | 29,865 | (1,295) | 157,152
Related party assets | (487) | (5,645) | 4,194
Accounts payable and accrued expenses | 92,925 | (4,530) | 10,263
Net cash provided by operating activities | 1,535,395 | 1,075,513 | 975,583
Cash flow from investing activities: |  |  |
Purchases of property, plant and equipment | (1,441,475) | (2,309,406) | (1,869,968)
Proceeds of equity securities | 207 | 185 | 8,608
Net cash used by investing activities | (1,129,529) | (1,766,649) | (1,571,136)
Cash flow from financing activities: |  |  |
Borrowings from credit facilities | 922,008 | 1,121,412 | 897,311
Principal repayments on credit facilities | (662,588) | (349,986) | (299,748)
Debt issuance costs | (5,793) | (5,332) | (7,243)
Common stock dividends paid | (49,019) | (29,404) | (39,179)
Net contribution from (to) related party | 0 | 0 |
Net Cash Provided by (Used in) Financing Activities | 287,353 | 512,320 | 514,582
Effects of exchange rate on cash | 6,441 | (533) | (4,716)
Increase (decrease) in cash and cash equivalents | 699,660 | (179,349) | (85,687)
Cash and cash equivalents at the beginning of period | 494,352 | 673,701 | 759,388
Cash and cash equivalents at the end of the period | 1,194,012 | 494,352 | 673,701
Amerco [Member] |  |  |
Cash flow from operating activities: |  |  |
Net earnings | 610,856 | 442,048 | 370,857
Earnings from consolidated subsidiaries | (508,632) | (205,940) | (279,589)
Adjustments to reconcile net earnings to cash provided by operations: |  |  |
Depreciation | 1 | 1 | 1
Net loss on sales of investments | 924 | 0 | 0
Deferred income taxes | 72,407 | 323,980 | 112,434
Net change in other operating assets and liabilities: |  |  |
Prepaid expenses | 88,898 | (381,190) | (6,289)
Other assets | 0 | 22 | (40)
Related party assets | (12,000) | 0 | 0
Accounts payable and accrued expenses | (4,019) | 1,935 | 2,260
Net cash provided by operating activities | 248,435 | 180,856 | 199,634
Cash flow from investing activities: |  |  |
Purchases of property, plant and equipment | (3) | 0 | (1)
Proceeds of equity securities | 0 | 0 | 0
Net cash used by investing activities | (3) | 0 | (1)
Cash flow from financing activities: |  |  |
Borrowings from credit facilities | 200,000 | 0 | 0
Principal repayments on credit facilities | (200,000) | 0 | 0
Debt issuance costs | (924) | 0 | 0
Proceeds from (repayments) of intercompany loans | 211,064 | (311,534) | (196,382)
Common stock dividends paid | (49,019) | (29,404) | (39,179)
Net contribution from (to) related party | 41,199 | 21,600 | 0
Net Cash Provided by (Used in) Financing Activities | 202,320 | (319,338) | (235,561)
Effects of exchange rate on cash | 5,773 | 4,060 | (4,331)
Increase (decrease) in cash and cash equivalents | 456,525 | (134,422) | (40,259)
Cash and cash equivalents at the beginning of period | 294,528 | 428,950 | 469,209
Cash and cash equivalents at the end of the period | $ 751,053 | $ 294,528 | $ 428,950

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