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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
OPERATING ACTIVITIES |  |
Net income | $ 349,117 | $ 260,052
Reconciliation of net income to net cash used in operating activities: |  |
Depreciation, amortization, and accretion | 30,637 | 29,437
Amortization on cloud computing arrangements | 420 | 0
Bad debt expense | 6,392 | 693
Deferred tax expense (benefit) | 1,859 | (1,020)
Stock-based compensation | 17,559 | 12,766
Excess tax benefit from stock-based compensation | (1,687) | (1,755)
Loss on disposal of property and equipment | 259 | 679
Impairment of operating lease assets and other long-lived assets | 4,060 | 1,382
Gain on settlement of asset retirement obligations | (207) | 0
Changes in operating assets and liabilities: |  |
Trade accounts receivable, net | (133,708) | (108,982)
Inventories, net | 6,321 | (87,104)
Prepaid expenses and other current assets | (32,387) | (19,970)
Income tax receivable | (2,305) | (5,781)
Net operating lease assets and liabilities | 1,652 | (1,692)
Other assets | (3,023) | (5,924)
Trade accounts payable | 152,797 | 119,794
Other accrued expenses | 75,658 | 21,504
Income taxes payable | 47,530 | 23,545
Long-term liabilities | 1,318 | 1,101
Net cash provided by operating activities | 522,262 | 238,725
INVESTING ACTIVITIES |  |
Purchases of property and equipment | (21,300) | (23,664)
Proceeds from sales of property and equipment | 49 | 266
Net cash used in investing activities | (21,251) | (23,398)
FINANCING ACTIVITIES |  |
Proceeds from short-term borrowings | 9,100 | 69,336
Repayments of short-term borrowings | (9,478) | (63,178)
Proceeds from issuance of stock | 698 | 618
Proceeds from exercise of stock options | 5,583 | 3,145
Repurchases of common stock | 0 | (190,405)
Cash paid for shares withheld for taxes | (7,203) | (5,995)
Repayments of mortgage principal | (470) | (448)
Net cash used in financing activities | (1,770) | (186,927)
Effect of foreign currency exchange rates on cash and cash equivalents | 7,879 | (1,228)
Net change in cash and cash equivalents | 507,120 | 27,172
Cash and cash equivalents at beginning of period | 649,436 | 589,692
Cash and cash equivalents at end of period | 1,156,556 | 616,864
Cash paid during the period |  |
Income taxes, net of refunds of $1,489 and $5,302, as of December 31, 2020 and 2019, respectively | 56,957 | 47,482
Interest | 2,336 | 1,749
Operating leases | 43,263 | 45,732
Non-cash investing activities |  |
Accrued for purchases of property and equipment | 1,900 | 1,444
Accrued for asset retirement obligations | $ 1,595 | $ 38

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