CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating Activities
Net (loss) income	$ 6,731	$ (27,906)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Loss on extinguishment of convertible Notes	47,880	0
Loss on prepayment of Senior Notes	8,233	0
Depreciation and amortization	13,319	51,503
Accretion of debt discount and debt issuance costs	5,511	12,220
Recurring fair value measurement of assets and liabilities	3,629	(85)
Stock-based compensation	5,527	5,336
Provision for inventory and other assets	1,808	196
Other	(9)	3,150
Changes in assets and liabilities:
Accounts receivable	29,414	2,900
Inventories	512	195
Prepaid and other assets	4,810	30,492
Accounts payable and other accrued liabilities	(13,337)	(14,890)
Accrued rebates, returns and discounts	(39,757)	(11,951)
Interest payable	(7,524)	(2,451)
Net cash (used in) provided by operating activities	(45,159)	48,709
Investing Activities
Purchases of property and equipment	(9)	(621)
Cash acquired in Zyla Merger	7,585	0
Proceeds from sale of investments	6,000	0
Purchases of marketable securities	0	(7,864)
Maturities of marketable securities	0	750
Net cash provided by (used in) investing activities	512,802	(7,735)
Financing Activities
Payments on Revolver	(10,000)	0
Proceeds from issuance of common stock	0	183
Shares withheld for payment of employee's withholding tax liability	(841)	(509)
Net cash used in financing activities	(450,347)	(83,575)
Net increase (decrease) in cash and cash equivalents	17,296	(42,601)
Cash and cash equivalents at beginning of year	42,107	110,949
Cash and cash equivalents at end of period	59,403	68,348
Supplemental Disclosure of Cash Flow Information
Net cash paid for income taxes	396	420
Cash paid for interest	11,213	21,571
Capital expenditures incurred but not yet paid	0	287
Senior Notes
Financing Activities
Payments in connection with debt settlement and extinguishment	(171,775)	0
Convertible debt
Financing Activities
Payments in connection with debt settlement and extinguishment	(264,731)	0
Promissory note
Financing Activities
Payments on Promissory Note	(3,000)	0
Gralise
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Gain (loss) on sale	(126,655)	0
Investing Activities
Proceeds from sale	130,261	0
NUCYNTA
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Gain (loss) on sale	14,749	0
Investing Activities
Proceeds from sale	$ 368,965	$ 0