XML 52 R1.htm IDEA: XBRL DOCUMENT v2.4.0.8
Document and Entity Information
 9 Months Ended
Sep. 30, 2013
Nov. 01, 2013
Ordinary Shares
Nov. 01, 2013
American Depository Shares
Document Information [Line Items]      
Document Type 10-Q    
Amendment Flag false    
Document Period End Date Sep. 30, 2013    
Document Fiscal Year Focus 2013    
Document Fiscal Period Focus Q3    
Trading Symbol AMRN    
Entity Registrant Name AMARIN CORP PLC\UK    
Entity Central Index Key 0000897448    
Current Fiscal Year End Date --12-31    
Entity Filer Category Large Accelerated Filer    
Entity Common Stock, Shares Outstanding   468,546 172,195,467