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Unaudited Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Cash flows from operating activities:    
Net income (loss) $ (13,374) $ 2,158
Adjustments to reconcile net income (loss) to net cash used in operating activities:    
Depreciation and amortization expense 14,195 15,256
Impairment of goodwill 10,000 0
Stock-based compensation expense 1,752 1,589
Amortization of deferred financing costs 513 449
Deferred income tax provision (benefit) (1,122) 396
Gains on disposals of assets (1,245) (210)
Other, net (300) 17
Changes in operating assets and liabilities:    
Accounts receivable 1,579 (745)
Inventories (8,909) (12,802)
Accounts payable and accrued liabilities (19,355) (18,329)
Deferred revenue 4,771 4,179
Other operating assets and liabilities, net 135 2,124
Net cash flows used in operating activities (11,360) (5,918)
Cash flows from investing activities:    
Capital expenditures (10,092) (6,568)
Proceeds from disposition of equipment 2,295 223
Other, net (31) (48)
Net cash flows used in investing activities (7,828) (6,393)
Cash flows from financing activities:    
Revolving credit facility borrowings 1,894 27,865
Revolving credit facility repayments (1,894) (22,865)
Repayment of 1.50% convertible senior notes 0 (17,315)
Other debt and finance lease repayments (154) (106)
Payment of financing costs (954) (21)
Shares added to treasury stock as a result of net share settlements due to vesting of stock awards (2,578) (1,936)
Net cash flows used in financing activities (3,686) (14,378)
Effect of exchange rate changes on cash and cash equivalents (178) 478
Net change in cash and cash equivalents (23,052) (26,211)
Cash and cash equivalents, beginning of period 47,111 42,018
Cash and cash equivalents, end of period 24,059 15,807
Cash paid (received) for:    
Interest 306 485
Income taxes, net $ 599 $ (2,465)