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v3.22.0.1

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Operating Activities: |  |  |
Net income | $ 93,434 | $ 59,690 | $ 48,866
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 38,780 | 41,114 | 44,246
Deferred income taxes | (150) | 849 | (7,743)
Non-cash stock based compensation | 14,530 | 8,829 | 6,253
Loss on disposition of property and equipment | 973 | 683 | 462
Gain on sale of patents |  | (1,978) |
Impairment loss |  |  | 21,206
Net loss on divestitures |  |  | 1,587
Other | (271) | (748) | 1,042
Changes in assets and liabilities: |  |  |
Accounts receivable, net | 25,099 | (46,742) | 7,154
Inventory | (39,873) | (814) | (3,859)
Other assets | 10,307 | (11,997) | 13,363
Accounts payable | 8,166 | 29,960 | (10,253)
Other liabilities | (7,919) | 31,849 | (3,521)
Net cash provided by operating activities | 143,076 | 110,695 | 118,803
Investing Activities: |  |  |
Purchases of property and equipment | (38,468) | (17,219) | (23,729)
Cost of technology investments | (7,557) |  |
Proceeds from the sale of patents and property and equipment | 22 | 2,140 | 219
Acquisition of business | (2,827) |  | (14,823)
Acquisition of intangible assets |  | (3,141) |
Proceeds from divestiture of businesses, net |  |  | 44,173
Net cash (used in) provided by investing activities | (48,830) | (18,220) | 5,840
Financing Activities: |  |  |
Borrowing of debt |  | 201,194 | 37,812
Repayments of debt | (153,243) | (91,439) | (96,999)
Cash paid for the repurchase of Common Stock | (20,000) | (9,092) | (63,283)
Proceeds from the exercise of Common Stock options | 8,279 | 16,552 | 16,557
Cash paid for the cancellation of restricted stock | (4,108) | (1,117) | (1,402)
Acquisition contingent consideration payment | (69) | (618) |
Cash paid for financing costs |  |  | (1,278)
Net cash (used in) provided by financing activities | (169,141) | 115,480 | (108,593)
Foreign currency effect | (2,844) | 7,442 | (2,722)
Net (decrease) increase in cash, cash equivalents and restricted cash | (77,739) | 215,397 | 13,328
Cash, cash equivalents and restricted cash at beginning of period | 268,345 | 52,948 | 39,620
Cash, cash equivalents and restricted cash at end of period | 190,606 | 268,345 | 52,948
Supplemental disclosure of cash flow information: |  |  |
Cash paid for taxes | 14,857 | 5,013 | 11,008
Cash paid for interest | $ 2,378 | $ 4,204 | $ 4,462

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