ACQUISITIONS - Purchase Price Allocation (Details) - USD ($) $ in Thousands	7 Months Ended
Dec. 31, 2020	May 20, 2020	Jan. 31, 2019
13% Senior Secured Note due 2024 \| Senior Notes
Adjustments to Purchase Price Allocation to Fair Value
Interest rate	13.00%	13.00%
13% Senior Secured Note due 2024 \| Senior Notes \| Zyla Life Sciences
Adjustments to Purchase Price Allocation to Fair Value
Interest rate			13.00%
Zyla Life Sciences
Purchase Price Allocation to Fair Value
Cash	$ 7,585	$ 7,585
Accounts receivable	23,133	23,133
Inventories	14,261	26,742
Property and equipment	1,496	4,512
Intangible assets	193,400	160,900
Other assets	7,665	9,629
Total identifiable assets acquired	247,540	232,501
Accounts payable	21,574	21,574
Accrued rebates, returns and discounts	33,254	33,254
Other accrued liabilities	23,858	15,434
Contingent consideration	39,900	29,400
Debt	111,300	111,900
Total liabilities assumed	229,886	211,562
Net identifiable assets acquired	17,654	20,939
Goodwill	17,432	14,147
Net assets acquired	35,086	$ 35,086
Adjustments to Purchase Price Allocation to Fair Value
Inventories	(12,481)
Property and equipment	(3,016)
Intangible assets	32,500
Other assets	(1,964)
Total identifiable assets acquired	15,039
Other accrued liabilities	8,424
Contingent consideration	10,500
Debt	(600)
Total liabilities assumed	18,324
Net identifiable assets acquired	(3,285)
Goodwill	3,285
Zyla Life Sciences \| Promissory note
Purchase Price Allocation to Fair Value
Debt	3,000
Zyla Life Sciences \| Credit agreement
Purchase Price Allocation to Fair Value
Debt	10,000
Zyla Life Sciences \| 13% Senior Secured Note due 2024 \| Senior Notes
Purchase Price Allocation to Fair Value
Debt	95,000
Zyla Life Sciences \| Royalty rights obligation \| Senior Notes
Purchase Price Allocation to Fair Value
Debt	$ 3,300

Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accrued Liabilities, Other

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Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assets

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Amount of assets acquired at the acquisition date.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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The amount of liability arising from an inherited contingency (as defined) which has been recognized as of the acquisition date.

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Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date.

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Amount of other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Contractual interest rate for funds borrowed, under the debt agreement.

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