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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Cash flows from operating activities    
Net income $ 4,940 $ 4,655
Adjustments to reconcile net income to net cash from operating activities    
Depreciation and amortization 13,661 15,421
Amortization of debt costs and other assets 818 1,072
Provision for doubtful accounts (571) 1,555
Deferred income taxes (5,082) 153
Share-based compensation 14,392 9,124
Other-than-temporary impairment on debt securities   5,585
Loss on valuation of equity securities 3,050  
Changes in fair value of contingent consideration 2,689  
Other 1,040 823
Changes in operating assets and liabilities, net of effects of acquisition    
Accounts receivable (225) (4,302)
Inventories 6,880 (14,714)
Prepaid expenses and other current assets 1,498 1,377
Accounts payable (2,788) (2,233)
Other current liabilities (13,130) (11,639)
Other long-term assets and liabilities 1,657 2,248
Net cash from operating activities 28,829 9,125
Cash flows from investing activities    
Acquisition of business, net of cash acquired (43,749)  
Capital expenditures for property, plant and equipment (9,586) (11,441)
Capital expenditures for intangible assets (1,138) (1,849)
Asset acquisitions and other investments (1,448)  
Other investing activities   474
Net cash from investing activities (55,921) (12,816)
Cash flows from financing activities    
Proceeds from issuance of common shares 5,866 6,277
Payments related to withholdings for share-based compensation (2,402) (3,679)
Payment of debt issuance costs and other financing activities (476)  
Net cash from financing activities 2,988 2,598
Effect of exchange rate changes on cash (811) 1,077
Net change in cash, cash equivalents, and restricted cash (24,915) (16)
Cash, cash equivalents, and restricted cash at the beginning of period 81,157 53,941
Cash, cash equivalents, and restricted cash at the end of period 56,242 53,925
Components of cash, cash equivalents and restricted cash at the end of period    
Cash and cash equivalents 53,783 53,925
Restricted cash 2,459  
Cash, cash equivalents, and restricted cash at the end of period 56,242 $ 53,925
Noncash investing activities:    
Purchase of intangible assets 1,581  
Contingent consideration recognized at acquisition date $ 25,491