Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Net cash flows from operating activities:
Net (loss) income	$ (10,354)	$ 2,535
Adjustments to reconcile net (loss) income to net cash from operating activities:
Depreciation and amortization	9,642	8,731
Non-cash compensation	5,074	4,119
Deferred income taxes	(1,894)	(301)
Other non-cash adjustments to net (loss) income	5,594	4,032
Changes in operating assets and liabilities:
Receivables	7,644	(10,446)
Inventories and deferred preservation costs	(12,902)	262
Prepaid expenses and other assets	(3,422)	(3,131)
Accounts payable, accrued expenses, and other liabilities	(142)	(3,894)
Net cash flows (used in) provided by operating activities	(760)	1,907
Net cash flows from investing activities:
Capital expenditures	(3,776)	(3,344)
Other	(705)	(302)
Net cash flows used in investing activities	(4,481)	(3,646)
Net cash flows from financing activities:
Proceeds from issuance of convertible debt	100,000
Proceeds from revolving line of credit	30,000
Repayment of revolving line of credit	(30,000)
Proceeds from financing insurance premiums	2,816
Payment of debt issuance costs	(3,647)
Repayment of term loan	(1,389)	(1,393)
Proceeds from exercise of stock options and issuance of common stock	1,175	3,582
Redemption and repurchase of stock to cover tax withholdings	(1,728)	(2,664)
Other	(1,041)	(349)
Net cash flows provided by (used in) financing activities	96,186	(824)
Effect of exchange rate changes on cash, cash equivalents, and restricted securities	879	582
Increase (decrease) in cash, cash equivalents, and restricted securities	91,824	(1,981)
Cash, cash equivalents, and restricted securities, beginning of year	34,294	42,236
Cash, cash equivalents, and restricted securities, end of year	$ 126,118	$ 40,255