Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities
Net income	$ 350	$ 6,151
Adjustments to reconcile net income to net cash from operating activities
Depreciation and amortization	11,905	8,923
Amortization of operating lease assets, debt costs and other assets	1,750	592
Provision for doubtful accounts	638	(360)
Deferred income taxes	(2,316)	724
Share-based compensation	11,534	9,131
Interest and gain on valuation of investment securities	(1,023)	(1,399)
Change in fair value of contingent consideration	5,870	1,109
Other	477	847
Changes in operating assets and liabilities, net of effects of acquisitions
Accounts receivable	(3,535)	(363)
Inventories	(2,389)	5,251
Prepaid expenses and other current assets	(3,277)	71
Accounts payable	1,626	(3,847)
Other current liabilities	(8,138)	(14,612)
Payment of contingent consideration	(1,340)
Other long-term assets and liabilities	(3,788)	814
Net cash from operating activities	8,344	13,032
Cash flows from investing activities
Acquisition of business, net of cash acquired		(43,749)
Capital expenditures for property, plant and equipment	(9,595)	(5,782)
Capital expenditures for intangible assets	(743)	(870)
Asset acquisitions and other investments	(6,400)	(1,148)
Net cash from investing activities	(16,738)	(51,549)
Cash flows from financing activities
Proceeds from issuance of common shares	6,523	5,416
Payments related to withholdings for share-based compensation	(3,309)	(1,375)
Payment of contingent consideration	(13,660)
Payments related to finance lease obligation	(188)
Other financing activities	(947)	(356)
Net cash from financing activities	(11,581)	3,685
Effect of exchange rate changes on cash	(71)	(639)
Net change in cash, cash equivalents, and restricted cash	(20,046)	(35,471)
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	52,143	45,686
Components of cash, cash equivalents and restricted cash at the end of period
Cash and cash equivalents	52,143	45,686
Cash, cash equivalents, and restricted cash at the end of period	$ 52,143	45,686
Noncash investing activities:
Purchase of intangible assets		1,181
Contingent consideration recognized at acquisition date		$ 25,491