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Consolidated Statements Of Cash Flows - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Net cash flows from operating activities:    
Net income (loss) $ (2,064) $ 6,711
Adjustments to reconcile net (loss) income to net cash from operating activities:    
Depreciation and amortization 13,636 6,683
Non-cash compensation 4,685 5,652
Other non-cash adjustments to (loss) income (1,330) 879
Changes in operating assets and liabilities:    
Receivables (2,310) (4,303)
Inventories and deferred preservation costs 1,697 (6,901)
Prepaid expenses and other assets (2,481) (3,040)
Accounts payable, accrued expenses, and other liabilities (12,473) (855)
Net cash flows (used in) provided by operating activities (640) 4,826
Net cash flows from investing activities:    
Proceeds from sale of business component   740
Capital expenditures (4,275) (5,384)
Other (722) (67)
Net cash flows used in investing activities (4,997) (4,711)
Net cash flows from financing activities:    
Repayment of term loan (2,098) (3,916)
Proceeds from exercise of stock options and issuance of common stock 3,793 2,599
Redemption and repurchase of stock to cover tax withholdings (2,085) (1,600)
Other (888) (3)
Net cash flows used in financing activities (1,278) (2,920)
Effect of exchange rate changes on cash, cash equivalents, and restricted securities 1,473 477
Decrease in cash, cash equivalents, and restricted securities (5,442) (2,328)
Cash, cash equivalents, and restricted securities beginning of period 40,753 57,341
Cash, cash equivalents, and restricted securities end of period $ 35,311 $ 55,013