v3.10.0.1
Document and Entity Information - shares
6 Months Ended
Jun. 30, 2018
Jul. 26, 2018
Document and Entity Information [Abstract]    
Entity Registrant Name Enphase Energy, Inc.  
Entity Central Index Key 0001463101  
Document Type 10-Q  
Document Period End Date Jun. 30, 2018  
Amendment Flag false  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q2  
Current Fiscal Year End --12-31  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   96,848,549