SEGMENT RESULTS - Schedule of Reportable Segments Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment	4
Total net revenues from external customers	$ 2,993,206	$ 2,903,074	$ 2,914,364
Total segment adjusted income from continuing operations before income tax	1,573,010	1,455,871	1,411,950
Branded Pharmaceuticals
Segment Reporting Information [Line Items]
Total net revenues from external customers	893,617	781,780	855,402
Total segment adjusted income from continuing operations before income tax	384,186	377,526	426,677
Sterile Injectables
Segment Reporting Information [Line Items]
Total net revenues from external customers	1,266,097	1,238,847	1,063,131
Total segment adjusted income from continuing operations before income tax	998,453	950,145	780,799
Generic Pharmaceuticals
Segment Reporting Information [Line Items]
Total net revenues from external customers	740,586	783,110	879,882
Total segment adjusted income from continuing operations before income tax	160,046	87,178	159,716
International Pharmaceuticals
Segment Reporting Information [Line Items]
Total net revenues from external customers	92,906	99,337	115,949
Total segment adjusted income from continuing operations before income tax	$ 30,325	$ 41,022	$ 44,758