Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Operating activities:
Net loss	$ (87,109)	$ (46,215)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	4,066	5,203
Depreciation and amortization	408	966
Amortization of debt issuance costs and debt discount	753	954
Loss on extinguishment of debt	(3,378)	0
Inventory write-down	2,232	0
Asset impairment charges	1,116	0
Change in fair value of common stock warrant liabilities	(360)	(5,148)
Change in fair value of contingent consideration	11,600	2,800
Changes in operating assets and liabilities:
Trade accounts receivable	9,356	(5,124)
Inventory	2,583	2,633
Prepaid expenses and other current assets	4,996	(3,863)
Other assets	(2,413)	(139)
Accounts payable, accrued expenses and other liabilities	4,204	(4,413)
Deferred income taxes	0	(1,025)
Deferred revenue	(1,245)	(1,012)
Net cash used in operating activities	(46,435)	(54,383)
Investing activities:
Purchases of property and equipment	(35)	(103)
Change in restricted cash related to a previous divestiture	0	10,002
Net cash (used in) provided by investing activities	(35)	9,899
Financing activities:
Proceeds from term loan	0	2,167
Repayments of debt	0	(3,334)
Proceeds from issuance of common stock under equity incentive plans	271	168
Proceeds from issuance of common stock under an at-the-market offering, net of issuance costs	19,378	0
Net cash provided by (used in) financing activities	19,649	(999)
Net decrease in cash and cash equivalents	(26,821)	(45,483)
Cash and cash equivalents, beginning of the period	91,551	155,349
Cash and cash equivalents, end of the period	64,730	109,866
Noncash financing activities:
Extinguishment of Endo working capital advance note payable through net settlement of balances owed to the Company.	$ 7,000	$ 0