v3.26.1
Form N-1A Cover
Jun. 17, 2026
Prospectus [Line Items]  
Document Type 485BPOS
Amendment Flag false
Registrant Name ALPS SERIES TRUST
Entity Central Index Key 0001558107
Entity Investment Company Type N-1A
Document Period End Date Jun. 17, 2026
Prospectus Date Jun. 17, 2026