CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating activities
Net (loss) income	$ (13,069)	$ 15,662
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Amortization expense	18,923	16,795
Depreciation expense	715	439
Deferred income taxes	(6,038)
Stock-based compensation expense	6,135	6,879
Non-cash lease expense	158	7
Non-cash interest expense for amortization of debt discount and issuance costs	913	919
Changes in operating assets and liabilities:
Accounts receivable	(5,006)	(9,836)
Inventory	330	(400)
Prepaid expenses and other assets	677	(115)
Accounts payable	(350)	(1,350)
Accrued expenses	(6,838)	(8,029)
Accrued rebates, returns and discounts	(21,865)	(401)
Net cash (used in) provided by operating activities	(25,315)	20,570
Investing activities
Purchases of property and equipment	(108)	(428)
Acquisition of BDSI (net of cash acquired)	(572,069)
Net cash used in investing activities	(572,177)	(428)
Financing activities
Proceeds from issuances of common stock from employee stock purchase plans	203	358
Proceeds from the exercise of stock options	3,261	4,182
Payments made for employee stock tax withholdings	(3,382)	(3,508)
Repayment of term notes		(12,500)
Proceeds from term note modification	517,682
Net cash provided by (used in) financing activities	517,764	(11,468)
Net (decrease) increase in cash, cash equivalents and restricted cash	(79,728)	8,674
Cash, cash equivalents and restricted cash at beginning of period	188,973	176,663
Cash, cash equivalents and restricted cash at end of period	109,245	185,337
Reconciliation of cash, cash equivalents and restricted cash to the Consolidated Balance Sheets:
Cash and cash equivalents	106,698	182,790
Restricted cash	2,547	2,547
Total cash, cash equivalents and restricted cash	109,245	185,337
Supplemental disclosure of cash flow information
Cash paid for interest	5,833	5,746
Cash paid for income taxes	2,114	418
Supplemental disclosure of non-cash activities
Acquisition of property and equipment in accounts payable and accrued expenses	$ 148	560
Inventory used in the construction and installation of property and equipment		$ 516