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Consolidated Statements Of Cash Flows - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Cash flows from operating activities:      
Net income (loss) $ 50,437 $ 10,238 $ (16,494)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:      
Depreciation and amortization 29,250 33,130 34,043
Unrealized foreign currency (gain) loss, net (1,455) 1,025 (9,027)
(Gain) loss on disposals of assets 5,019 (842) 547
Share-based compensation 13,105 9,773 10,736
Asset impairments 2,182 5,284 3,144
Provision (recovery) for doubtful accounts, net 711 (589) 3,230
Deferred taxes 959 (3,093) (388)
Other non-cash items 1,994 (1,564) (44)
Changes in operating assets and liabilities:      
Accounts receivable, net of allowances (24,623) 620 2,408
Inventories (1,987) 23,319 20,371
Prepaid expenses and other assets 9,703 18,907 (4,532)
Accounts payable 12,953 (2,714) (1,354)
Accrued expenses and other liabilities 18,065 5,489 2,884
Income taxes (2,151) (719) (5,770)
Cash provided by operating activities 114,162 98,264 39,754
Cash flows from investing activities:      
Purchases of property, equipment, and software (11,979) (13,117) (22,194)
Proceeds from disposal of property and equipment 1,856 1,579 2,438
Other 13 0 (100)
Cash used in investing activities (10,110) (11,538) (19,856)
Cash flows from financing activities:      
Proceeds from borrowings 120,000 5,500 31,582
Repayments of borrowings (662) (8,611) (35,627)
Series A preferred stock repurchase (183,724) 0 0
Dividends — Series A convertible preferred stock [1] (21,015) (12,000) (12,000)
Repurchases of common stock (63,131) (50,000) 0
Other (270) (259) (398)
Cash used in financing activities (148,802) (65,370) (16,443)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash (4,775) 3,053 (255)
Net change in cash, cash equivalents, and restricted cash (49,525) 24,409 3,200
Cash, cash equivalents, and restricted cash—beginning of year 177,055 152,646 149,446
Cash, cash equivalents, and restricted cash—end of year 127,530 177,055 152,646
Supplemental disclosure of cash flow information—cash paid during the period for:      
Cash paid for interest 462 434 653
Cash paid for income taxes $ 18,633 $ 13,208 $ 12,344
[1] Represents Series A Convertible Preferred Stock cash dividends declared and paid of $9.0 million and $12.0 million paid to induce conversion for the year ended December 31, 2018.