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Consolidated Condensed Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Operating Activities:    
Net income $ 11,747 $ 32,909
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 9,577 9,854
Deferred income taxes (778) 105
Non-cash stock based compensation 2,279 4,460
Loss on disposition of property and equipment 107 242
Other 256 (103)
Changes in assets and liabilities:    
Accounts receivable, net (25,788) (13,931)
Inventory (18,116) (11,546)
Other assets (10,716) 3,243
Accounts payable 34,097 18,113
Other liabilities (3,349) (3,679)
Net cash (used in) provided by operating activities (684) 39,667
Investing Activities:    
Purchases of property and equipment (5,659) (9,913)
Proceeds from the sale of property and equipment 52 10
Cost of technology investments (350) (200)
Net cash used in investing activities (5,957) (10,103)
Financing Activities:    
Repayments of debt   (130,000)
Proceeds from the exercise of Common Stock options 569 5,984
Taxes withheld and paid on employees' share-based payment awards (4,319) (1,532)
Acquisition contingent consideration payment   (68)
Net cash used in financing activities (3,750) (125,616)
Foreign currency effect (2,298) (1,338)
Net decrease in cash and cash equivalents (12,689) (97,390)
Cash and cash equivalents at beginning of period 190,606 268,345
Cash and cash equivalents at end of period 177,917 170,955
Supplemental disclosure of cash flow information:    
Cash paid for taxes 3,267 2,555
Cash paid for interest $ 421 $ 844