Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash used in operating activities
Net loss	$ (108,327)	$ (126,710)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	1,728	2,050
Amortization of intangible assets	25,091	25,052
Stock-based compensation	3,060	4,537
Non-cash interest expense	39,670	32,954
Provision for inventory excess and obsolescence	2,062	18,814
Unrealized foreign exchange loss (gain)	2,925	(832)
Amortization of debt issuance costs and debt discount	3,132	0
Deferred income taxes	857	138
Other non-cash operating activities	(3)	83
Loss on extinguishment of debt	4,333	0
Changes in assets and liabilities:
Accounts receivable	(6,745)	(12,852)
Inventories	(1,700)	6,081
Prepaid expenses and other assets	(4,380)	19,541
Accounts payable	(10,720)	(3,932)
Accrued and other liabilities	(6,449)	(19,823)
Net cash used in operating activities	(55,466)	(54,899)
Cash used in investing activities
Purchase of property and equipment	(442)	(754)
Net cash used in investing activities	(442)	(754)
Cash provided by financing activities
Net proceeds from loan facilities	70,000	0
Issuance of common shares	354	109
Repayment of Shareholder Term Loans	(20,000)	0
Payment of debt issuance costs	(2,966)	0
Net cash provided by financing activities	47,388	109
Exchange rate effect on cash	(1,756)	2,047
Net decrease in cash and cash equivalents	(10,276)	(53,497)
Cash and cash equivalents, beginning of period	55,430	108,927
Cash and cash equivalents, end of period	45,154	55,430
Supplemental disclosures of cash flow information
Cash paid for interest	8,182	6,500
Cash paid for taxes, net	42	1,671
Non-cash investing activities
Purchases of property and equipment included in accounts payable	10	122
Non-cash financing activities
Refinance from Roll Up Loans	22,500	0
Retirement of Convertible Notes	$ (22,500)	$ 0