Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash used in operating activities
Net loss	$ (31,847)	$ (32,828)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation	361	475
Non-cash lease expense	610
Amortization of intangible assets	6,256	6,274
Stock-based compensation	645	906
Non-cash interest expense	12,205	9,193
Unrealized foreign exchange loss	530	438
Amortization of debt issuance costs and debt discount	1,752	18
Deferred income taxes	0	6
Other non-cash operating activities	(8)	5
Changes in assets and liabilities:
Accounts receivable	1,924	6,126
Inventories	(1,679)	(2,255)
Prepaid expenses and other assets	1,514	(2,908)
Accounts payable	(901)	454
Accrued liabilities and other liabilities	(7,379)	(8,635)
Deferred revenue	24,167	0
Net cash provided by (used in) operating activities	8,150	(22,731)
Cash used in investing activities
Purchases of property and equipment	0	(208)
Net cash used in investing activities	0	(208)
Cash provided by financing activities
Net proceeds from Shareholder Term Loan, net of debt discount	0	19,977
Issuance of common shares	(9)	(3)
Payment of Shareholder Term Loan issuance costs	0	(698)
Repayment of Bridge Loans	(2,996)	0
Net cash (used in) provided by financing activities	(3,005)	19,276
Exchange rate effect on cash	1,620	216
Net increase (decrease) in cash and cash equivalents	6,765	(3,447)
Cash and cash equivalents, beginning of period	45,154	55,430
Cash and cash equivalents, end of period	51,919	51,983
Supplemental disclosures of cash flow information
Cash paid for interest	3,264	3,262
Cash paid for taxes, net	350	57
Non-cash investing activities and financing activities:
Purchases of property and equipment included in accounts payable	0	$ 113
Right-of-use assets obtained in exchange for operating lease obligation	1,943
Lease liabilities arising in exchange for right of use assets	$ 1,945