v3.24.0.1
Goodwill and other intangible assets - Recoverable amounts based on value in use (Details)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Goodwill and other intangible assets      
Cash flow calculations, projection period 5 years    
IHS Nigeria Limited      
Goodwill and other intangible assets      
Pre-tax weighted average cost of capital 29.50% 24.40% 16.10%
Terminal growth rate 4.00% 3.20% 2.70%
INT Towers Limited      
Goodwill and other intangible assets      
Pre-tax weighted average cost of capital   25.40% 16.00%
Terminal growth rate   3.20% 2.70%
IHS Towers NG Limited      
Goodwill and other intangible assets      
Pre-tax weighted average cost of capital   24.90% 16.50%
Terminal growth rate   3.20% 2.70%
IHS Cameroon S.A.      
Goodwill and other intangible assets      
Pre-tax weighted average cost of capital 14.10% 13.70% 12.10%
Terminal growth rate 4.00% 4.00% 3.20%
IHS Cote d Ivoire S.A.      
Goodwill and other intangible assets      
Pre-tax weighted average cost of capital 10.80% 11.00% 9.80%
Terminal growth rate 4.00% 4.00% 3.20%
IHS Zambia Group      
Goodwill and other intangible assets      
Pre-tax weighted average cost of capital 26.40% 30.20% 24.10%
Terminal growth rate 4.00% 4.00% 2.00%
IHS Rwanda Group      
Goodwill and other intangible assets      
Pre-tax weighted average cost of capital 17.10% 18.10% 15.50%
Terminal growth rate 4.00% 4.00% 3.20%
IHS Kuwait Limited      
Goodwill and other intangible assets      
Pre-tax weighted average cost of capital 7.60% 6.30% 6.00%
Terminal growth rate 2.80% 3.60% 2.90%
IHS South Africa Proprietary Limited      
Goodwill and other intangible assets      
Pre-tax weighted average cost of capital 15.10% 13.90%  
Terminal growth rate 4.00% 3.30%  
Bottom of range | IHS Nigeria Limited      
Goodwill and other intangible assets      
Tenancy Ratio 4.05 3.76 3.32
Gross margins excluding depreciation & amortization 54.40% 62.50% 64.20%
Bottom of range | INT Towers Limited      
Goodwill and other intangible assets      
Tenancy Ratio   3.93 3.56
Gross margins excluding depreciation & amortization   61.70% 67.40%
Bottom of range | IHS Towers NG Limited      
Goodwill and other intangible assets      
Tenancy Ratio   3.65 3.63
Gross margins excluding depreciation & amortization   65.30% 52.30%
Bottom of range | IHS Cameroon S.A.      
Goodwill and other intangible assets      
Tenancy Ratio 2.64 2.56 2.37
Gross margins excluding depreciation & amortization 55.00% 56.60% 57.80%
Bottom of range | IHS Cote d Ivoire S.A.      
Goodwill and other intangible assets      
Tenancy Ratio 3.40 3.35 3.45
Gross margins excluding depreciation & amortization 48.90% 54.80% 53.80%
Bottom of range | IHS Zambia Group      
Goodwill and other intangible assets      
Tenancy Ratio 2.63 2.61 2.40
Gross margins excluding depreciation & amortization 64.00% 65.40% 65.20%
Bottom of range | IHS Rwanda Group      
Goodwill and other intangible assets      
Tenancy Ratio 1.69 2.04 2.04
Gross margins excluding depreciation & amortization 66.10% 69.00% 67.00%
Bottom of range | IHS Kuwait Limited      
Goodwill and other intangible assets      
Tenancy Ratio 1.01 1.01 1.00
Gross margins excluding depreciation & amortization 63.60% 56.60% 52.40%
Bottom of range | IHS South Africa Proprietary Limited      
Goodwill and other intangible assets      
Tenancy Ratio 1.40 1.25  
Gross margins excluding depreciation & amortization 42.50% 42.90%  
Top of range | IHS Nigeria Limited      
Goodwill and other intangible assets      
Tenancy Ratio 8.32 7.74 5.18
Gross margins excluding depreciation & amortization 75.50% 78.70% 79.70%
Top of range | INT Towers Limited      
Goodwill and other intangible assets      
Tenancy Ratio   4.79 4.98
Gross margins excluding depreciation & amortization   74.00% 74.90%
Top of range | IHS Towers NG Limited      
Goodwill and other intangible assets      
Tenancy Ratio   4.73 4.44
Gross margins excluding depreciation & amortization   72.30% 63.10%
Top of range | IHS Cameroon S.A.      
Goodwill and other intangible assets      
Tenancy Ratio 2.94 3.10 2.89
Gross margins excluding depreciation & amortization 59.20% 65.50% 64.60%
Top of range | IHS Cote d Ivoire S.A.      
Goodwill and other intangible assets      
Tenancy Ratio 4.04 4.00 4.46
Gross margins excluding depreciation & amortization 56.70% 61.50% 63.50%
Top of range | IHS Zambia Group      
Goodwill and other intangible assets      
Tenancy Ratio 3.11 3.24 3.30
Gross margins excluding depreciation & amortization 70.20% 72.80% 74.60%
Top of range | IHS Rwanda Group      
Goodwill and other intangible assets      
Tenancy Ratio 2.58 2.64 2.97
Gross margins excluding depreciation & amortization 72.60% 73.20% 73.30%
Top of range | IHS Kuwait Limited      
Goodwill and other intangible assets      
Tenancy Ratio 2.00 1.53 1.46
Gross margins excluding depreciation & amortization 71.80% 62.60% 64.90%
Top of range | IHS South Africa Proprietary Limited      
Goodwill and other intangible assets      
Tenancy Ratio 2.94 2.28  
Gross margins excluding depreciation & amortization 50.30% 66.40%