v3.26.1
Form N-1A Cover
Aug. 11, 2026
Prospectus [Line Items]  
Document Type 497
Amendment Flag false
Registrant Name CALAMOS INVESTMENT TRUST/IL
Entity Central Index Key 0000826732
Entity Investment Company Type N-1A
Document Period End Date Aug. 11, 2026
Prospectus Date Feb. 27, 2026