SEGMENT RESULTS - Schedule of Reportable Segments Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) segment	Jun. 30, 2022 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			4
Segment Reporting Information
Total net revenues from external customers	$ 546,852	$ 569,114	$ 1,062,119	$ 1,221,373
Total segment adjusted income from continuing operations before income tax	270,151	248,819	504,540	588,502
Branded Pharmaceuticals
Segment Reporting Information
Total net revenues from external customers	212,377	218,952	409,950	423,813
Total segment adjusted income from continuing operations before income tax	115,340	88,613	211,605	166,279
Sterile Injectables
Segment Reporting Information
Total net revenues from external customers	137,028	123,171	238,283	363,199
Total segment adjusted income from continuing operations before income tax	69,546	68,397	110,636	259,651
Generic Pharmaceuticals
Segment Reporting Information
Total net revenues from external customers	178,579	203,377	376,759	389,321
Total segment adjusted income from continuing operations before income tax	80,404	83,337	172,091	149,719
International Pharmaceuticals
Segment Reporting Information
Total net revenues from external customers	18,868	23,614	37,127	45,040
Total segment adjusted income from continuing operations before income tax	$ 4,861	$ 8,472	$ 10,208	$ 12,853