REVENUE- Disaggregation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Total net product sales	$ 538,966	$ 426,614	$ 418,926
EXPAREL
Disaggregation of Revenue [Line Items]
Total net product sales	506,515	413,338	407,877
ZILRETTA
Disaggregation of Revenue [Line Items]
Total net product sales	12,683	0	0
iovera°
Disaggregation of Revenue [Line Items]
Total net product sales	16,162	8,817	7,896
Bupivacaine liposome injectable suspension
Disaggregation of Revenue [Line Items]
Total net product sales	$ 3,606	$ 4,459	$ 3,153