v3.19.3
Cover Page - shares
9 Months Ended
Sep. 30, 2019
Nov. 03, 2019
Cover page.    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2019  
Document Transition Report false  
Entity File Number 001-35060  
Entity Registrant Name PACIRA BIOSCIENCES, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 51-0619477  
Entity Address, Address Line One 5 Sylvan Way, Suite 300  
Entity Address, City or Town Parsippany  
Entity Address, State or Province NJ  
Entity Address, Postal Zip Code 07054  
City Area Code 973  
Local Phone Number 254-3560  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol PCRX  
Security Exchange Name NASDAQ  
Entity Common Stock, Shares Outstanding   41,730,807
Entity Central Index Key 0001396814  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus (Q1,Q2,Q3,FY) Q3  
Amendment Flag false