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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Jun. 30, 2013 | Jun. 30, 2012
Cash flows from operating activities: |  |
Net income (loss) | $ 3,393 | $ (16,660)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |
Depreciation | 2,872 | 3,021
Amortization | 2,633 | 4,912
Service parts lower of cost or market adjustment | 4,028 | 2,029
Deferred income taxes | 128 | 382
Share-based compensation | 3,356 | 4,287
Changes in assets and liabilities: |  |
Accounts receivable | 10,579 | 24,009
Manufacturing inventories | 337 | (4,603)
Service parts inventories | 913 | 722
Accounts payable | (12,372) | (8,891)
Accrued warranty | (505) | 211
Deferred revenue | (2,169) | (7,351)
Accrued restructuring charges | 1,026 | (484)
Accrued compensation | (2,370) | (1,138)
Other assets and liabilities | (2,676) | (1,555)
Net cash provided by (used in) operating activities | 9,173 | (1,109)
Cash flows from investing activities: |  |
Purchases of property and equipment | (1,230) | (3,984)
(Increase) decrease in restricted cash | (37) | 109
Return of principal from other investments |  | 208
Net cash used in investing activities | (1,267) | (3,667)
Cash flows from financing activities: |  |
Payment of taxes due upon vesting of restricted stock | (203) | (321)
Proceeds from issuance of common stock | 60 | 176
Net cash used in financing activities | (143) | (145)
Effect of exchange rate changes on cash and cash equivalents | (8) | (70)
Net increase (decrease) in cash and cash equivalents | 7,755 | (4,991)
Cash and cash equivalents at beginning of period | 68,976 | 51,261
Cash and cash equivalents at end of period | $ 76,731 | $ 46,270

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