v3.25.1
Document and Entity Information - shares
 3 Months Ended
Mar. 29, 2025
May 02, 2025
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 29, 2025  
Document Fiscal Year Focus 2025  
Document Transition Report false  
Securities Act File Number 001-40358  
Entity Registrant Name Latham Group, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 83-2797583  
Entity Address, Address Line One 787 Watervliet Shaker Road  
Entity Address, City or Town Latham  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 12110  
City Area Code 800  
Local Phone Number 833-3800  
Title of 12(b) Security Common stock, par value $0.0001 per share  
Trading Symbol SWIM  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   116,367,606
Entity Central Index Key 0001833197  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q1  
Amendment Flag false