Document And Entity Information - shares
9 Months Ended
Sep. 30, 2016
Oct. 31, 2016
Document And Entity Information[Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2016  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2016  
Entity Registrant Name Crocs, Inc.  
Entity Central Index Key 0001334036  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Common stock outstanding (shares)   73,546,841
Trading Symbol crox