v3.26.1
Party-in-Interest Transactions (Details) - EBP 001 - USD ($)
Dec. 31, 2025
Dec. 31, 2024
EBP, Related Party and Party-in-Interest Transactions [Line Items]    
Investment, common stock value $ 255,912,288 $ 211,089,047
SPS Commerce, Inc. common stock    
EBP, Related Party and Party-in-Interest Transactions [Line Items]    
Investment, number of common stock (in shares) 120,207 105,326
Investment, common stock value $ 10,714,050 $ 19,378,857