v3.26.1
Borrowings - Debt instrument (Details)
€ in Millions, $ in Millions, ₦ in Billions, XOF in Billions, XAF in Billions, R in Billions
Jun. 30, 2026
USD ($)
Jun. 30, 2026
XOF
Jun. 30, 2026
EUR (€)
Jun. 30, 2026
ZAR (R)
Jun. 30, 2026
NGN (₦)
Jun. 30, 2026
XAF
Feb. 11, 2026
Dec. 31, 2025
USD ($)
Borrowings                
Borrowings $ 3,109.8             $ 3,234.4
Borrowings 3,109.8             3,137.7
I-Systems Solues de Infraestrutura S.A.                
Borrowings                
Agreed to sell equity interest             51.00%  
Assets and liabilities classified as held for sale                
Borrowings                
Borrowings               96.7
IHS Holding limited, Senior Note Maturing 2026                
Borrowings                
Notional amount $ 200.0              
Interest rate 5.625% 5.625% 5.625% 5.625% 5.625% 5.625%    
Borrowings $ 200.7             200.5
IHS Holding limited, Senior Note Maturing 2028                
Borrowings                
Notional amount $ 500.0              
Interest rate 6.25% 6.25% 6.25% 6.25% 6.25% 6.25%    
Borrowings $ 500.4             500.2
IHS Holding limited, Senior Note Maturing 2030                
Borrowings                
Notional amount $ 550.0              
Interest rate 7.875% 7.875% 7.875% 7.875% 7.875% 7.875%    
Borrowings $ 547.2             546.7
IHS Holding limited, Senior Note Maturing 2031                
Borrowings                
Notional amount $ 650.0              
Interest rate 8.25% 8.25% 8.25% 8.25% 8.25% 8.25%    
Borrowings $ 645.8             645.3
IHS Mauritius NG Holdco Limited, senior notes issued 2019                
Borrowings                
Notional amount $ 286.0              
Interest rate 8.00% 8.00% 8.00% 8.00% 8.00% 8.00%    
Borrowings $ 290.6             290.0
I-Systems Solues de Infraestrutura S.A., debentures issued in 2024                
Borrowings                
Borrowings               26.8
I-Systems Solues de Infraestrutura S.A., debentures issued in 2024 | CDI                
Borrowings                
Borrowings, adjustment to interest rate basis 2.10% 2.10% 2.10% 2.10% 2.10% 2.10%    
IHS Cote d Ivoire S.A., CIV XOF Tranche II                
Borrowings                
Notional amount | XOF   XOF 5.9            
Interest rate 6.50% 6.50% 6.50% 6.50% 6.50% 6.50%    
Borrowings $ 9.8             12.1
IHS Cote d Ivoire S.A., CIV Euro Tranche II                
Borrowings                
Notional amount | €     € 46.3          
Borrowings $ 51.8             63.9
IHS Cote d Ivoire S.A., CIV Euro Tranche II | 3M EURIBOR                
Borrowings                
Borrowings, adjustment to interest rate basis 3.50% 3.50% 3.50% 3.50% 3.50% 3.50%    
IHS Holding 2025 facility                
Borrowings                
Notional amount $ 200.0              
Borrowings $ 198.9             198.2
IHS Holding 2025 facility | 3M SOFR                
Borrowings                
Borrowings, adjustment to interest rate basis 5.85% 5.85% 5.85% 5.85% 5.85% 5.85%    
IHS Holding (2024) Dual Tranche Bullet Term Loan Facility, ZAR Tranche                
Borrowings                
Notional amount | R       R 3.2        
Borrowings $ 200.7             198.6
IHS Holding (2024) Dual Tranche Bullet Term Loan Facility, ZAR Tranche | 3M JIBAR                
Borrowings                
Borrowings, adjustment to interest rate basis 4.50% 4.50% 4.50% 4.50% 4.50% 4.50%    
IHS Holding (2024) Dual Tranche Bullet Term Loan Facility, USD Tranche                
Borrowings                
Notional amount $ 255.0              
Borrowings $ 257.0             256.8
IHS Holding (2024) Dual Tranche Bullet Term Loan Facility, USD Tranche | 3M SOFR                
Borrowings                
Borrowings, adjustment to interest rate basis 4.50% 4.50% 4.50% 4.50% 4.50% 4.50%    
IHS Towers South Africa Proprietary Limited, maturing 2029                
Borrowings                
Notional amount | R       R 2.9        
Borrowings $ 173.6             182.4
IHS Towers South Africa Proprietary Limited, maturing 2029 | 3M JIBAR                
Borrowings                
Borrowings, adjustment to interest rate basis 2.75% 2.75% 2.75% 2.75% 2.75% 2.75%    
IHS Zambia Limited, maturing 2027                
Borrowings                
Notional amount $ 33.3              
Borrowings $ 33.2             42.9
IHS Zambia Limited, maturing 2027 | CAS + SOFR                
Borrowings                
Borrowings, adjustment to interest rate basis 5.00% 5.00% 5.00% 5.00% 5.00% 5.00%    
I-Systems Solues de Infraestrutura S.A., bank term loan issued October 2022                
Borrowings                
Borrowings               69.9
I-Systems Solues de Infraestrutura S.A., bank term loan issued October 2022 | CDI | Minimum                
Borrowings                
Borrowings, adjustment to interest rate basis 2.45% 2.45% 2.45% 2.45% 2.45% 2.45%    
I-Systems Solues de Infraestrutura S.A., bank term loan issued October 2022 | CDI | Maximum                
Borrowings                
Borrowings, adjustment to interest rate basis 2.50% 2.50% 2.50% 2.50% 2.50% 2.50%    
IHS Holding 2025 revolving credit facility                
Borrowings                
Notional amount $ 300.0              
IHS Holding 2025 revolving credit facility | CAS + SOFR                
Borrowings                
Borrowings, adjustment to interest rate basis 3.50% 3.50% 3.50% 3.50% 3.50% 3.50%    
Nigeria 2026 Revolving Credit Facility                
Borrowings                
Notional amount | ₦         ₦ 100.0      
Nigeria 2026 Revolving Credit Facility | MPR                
Borrowings                
Borrowings, adjustment to interest rate basis 1.00% 1.00% 1.00% 1.00% 1.00% 1.00%    
IHS Cameroon S.A., borrowings agreement September 2025                
Borrowings                
Notional amount | XAF           XAF 10.0    
Interest rate 5.50% 5.50% 5.50% 5.50% 5.50% 5.50%    
IHS Cameroon S.A., borrowings agreement October 2025                
Borrowings                
Notional amount | XAF           XAF 10.0    
IHS Cameroon S.A., borrowings agreement October 2025 | Minimum                
Borrowings                
Interest rate 5.50% 5.50% 5.50% 5.50% 5.50% 5.50%    
IHS Cameroon S.A., borrowings agreement October 2025 | Maximum                
Borrowings                
Interest rate 6.00% 6.00% 6.00% 6.00% 6.00% 6.00%    
IHS Nigeria, letters of credit issued February 2022                
Borrowings                
Notional amount $ 356.5              
Borrowings $ 0.1             $ 0.1
IHS Nigeria, letters of credit issued February 2022 | Minimum                
Borrowings                
Interest rate 12.00% 12.00% 12.00% 12.00% 12.00% 12.00%    
IHS Nigeria, letters of credit issued February 2022 | Maximum                
Borrowings                
Interest rate 15.39% 15.39% 15.39% 15.39% 15.39% 15.39%