Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities
Net income (loss)	$ (40,148)	$ 4,940
Adjustments to reconcile net income to net cash from operating activities
Depreciation and amortization	18,180	13,661
Amortization of operating lease assets, debt costs and other assets	2,724	818
Provision for doubtful accounts	861	(571)
Deferred income taxes	(3,309)	(5,082)
Share-based compensation	17,378	14,392
Interest and loss on valuation of investment securities	5,000	3,050
Change in fair value of contingent consideration	28,140	2,689
Other	1,307	1,040
Changes in operating assets and liabilities, net of effects of acquisitions
Accounts receivable	(3,298)	(225)
Inventories	(4,995)	6,880
Prepaid expenses and other current assets	1,637	1,498
Accounts payable	447	(2,788)
Other current liabilities	347	(13,130)
Payment of contingent consideration	(1,340)
Other long-term assets and liabilities	(2,841)	1,657
Net cash from operating activities	20,090	28,829
Cash flows from investing activities
Acquisition of business, net of cash acquired		(43,749)
Capital expenditures for property, plant and equipment	(13,737)	(9,586)
Capital expenditures for intangible assets	(1,144)	(1,138)
Asset acquisitions and other investments	(6,400)	(1,448)
Net cash from investing activities	(21,281)	(55,921)
Cash flows from financing activities
Proceeds from issuance of common shares	6,821	5,866
Payments related to withholdings for share-based compensation	(4,271)	(2,402)
Payment of contingent consideration	(13,660)
Payments related to finance lease obligation	(276)
Other financing activities	(1,224)	(476)
Net cash from financing activities	(12,610)	2,988
Effect of exchange rate changes on cash	(885)	(811)
Net change in cash, cash equivalents, and restricted cash	(14,686)	(24,915)
Cash, cash equivalents, and restricted cash at the beginning of period	72,189	81,157
Cash, cash equivalents, and restricted cash at the end of period	57,503	56,242
Components of cash, cash equivalents and restricted cash at the end of period
Cash and cash equivalents	56,849	53,783
Restricted cash	654	2,459
Cash, cash equivalents, and restricted cash at the end of period	$ 57,503	56,242
Noncash investing activities:
Purchase of intangible assets		1,581
Contingent consideration recognized at acquisition date		$ 25,491