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Cover Page - shares
3 Months Ended
Mar. 31, 2021
Apr. 20, 2021
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2021  
Document Transition Report false  
Entity File Number 000-51754  
Entity Registrant Name CROCS, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 20-2164234  
Entity Address, Address Line One 13601 Via Varra  
Entity Address, City or Town Broomfield  
Entity Address, State or Province CO  
Entity Address, Postal Zip Code 80020  
City Area Code 303  
Local Phone Number 848-7000  
Title of 12(b) Security Common Stock, par value $0.001 per share  
Trading Symbol CROX  
Security Exchange Name NASDAQ  
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  
Entity Common Stock, Shares Outstanding   65,230,433
Amendment Flag false  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2021  
Entity Central Index Key 0001334036  
Current Fiscal Year End Date --12-31