v3.20.1

ACQUISITIONS AND DISPOSITIONS - Sale of Gralise (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Jan. 10, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Co-promotion service income	$ (3,325,000)	$ (609,000)
Gralise \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received, including base purchase price and inventory adjustment			$ 78,600,000
Consideration received, base purchase price			75,000,000.0
Consideration received, inventory adjustment upon disposal			$ 3,600,000
Consideration receivable as percentage of net sales after closing			75.00%
Threshold for consideration receivable on net sales after closing			$ 70,000,000.0
Net sale after closing, contingent consideration			$ 52,500,000
Gain (loss) on disposal	127,500,000
Upfront consideration received	78,600,000
Contingent consideration deemed to be probable	52,500,000
Inventory transfer	3,600,000
Co-promotion service income	$ 1,300,000

Disposal Group, Including Discontinued Operation, Consideration, Amount Of Net Sales After Closing

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- Definition

Disposal Group, Including Discontinued Operation, Consideration, Base Purchase Price

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Disposal Group, Including Discontinued Operation, Consideration, Including Base Purchase Price And Inventory Adjustment

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- Definition

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Disposal Group, Including Discontinued Operations, Consideration, Percentage Of Net Sales After Closing

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- Definition

Disposal Group, Including Discontinued Operations, Contingent Consideration Deemed Probable

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- Definition

Disposal Group, Including Discontinued Operations, Inventory Adjustment

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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2443-110228

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
-Paragraph 28
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-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of income (expense) related to nonoperating activities, classified as other.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
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