ACQUISITIONS - Contingent Consideration Flexion Acquisition (Details) - Flexion $ in Thousands	Nov. 19, 2021 USD ($)
Business Acquisition [Line Items]
Cash paid to acquire business	$ 533,604
Cash paid to settle Flexion debt	85,100
Fair value of contingent value rights (CVRs)	45,241
Total purchase consideration	578,845
Debt
Business Acquisition [Line Items]
Cash paid to settle Flexion debt	85,118
Common Stock
Business Acquisition [Line Items]
Cash paid to acquire business	428,333
RSUs
Business Acquisition [Line Items]
Cash paid to acquire business	$ 20,153