v3.25.1
Intangible assets (Details) - EUR (€)
€ in Thousands
12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period € 38,852,000  
Balance at the end of the period 33,438,000 € 38,852,000
Discontinued Operations    
Changes in Intangible Assets and Goodwill    
Amortisation charge for the year 0 607,000
Amortisation charge for the year 0 607,000
Significant licences | GERMANY    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period 2,392,000 2,686,000
Balance at the end of the period   2,392,000
Significant licences | UK    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period 965,000 989,000
Balance at the end of the period   965,000
Significant licences | Vodacom    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period 771,000 687,000
Balance at the end of the period   771,000
Goodwill.    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period 24,956,000  
Balance at the end of the period 20,514,000 24,956,000
Licence and spectrum fees    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period 5,561,000  
Balance at the end of the period 5,227,000 5,561,000
Assets in the course of construction € 151,000 25,000
Licence and spectrum fees | Bottom of range [member]    
Intangible assets    
Estimated useful lives of finite lived intangible assets (in years) 3 years  
Licence and spectrum fees | Maximum [Member]    
Intangible assets    
Estimated useful lives of finite lived intangible assets (in years) 40 years  
Software    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period € 5,330,000  
Balance at the end of the period 5,299,000 5,330,000
Assets in the course of construction € 1,035,000 1,200,000
Software | Bottom of range [member]    
Intangible assets    
Estimated useful lives of finite lived intangible assets (in years) 3 years  
Software | Maximum [Member]    
Intangible assets    
Estimated useful lives of finite lived intangible assets (in years) 10 years  
Brands | Bottom of range [member]    
Intangible assets    
Estimated useful lives of finite lived intangible assets (in years) 1 year  
Brands | Maximum [Member]    
Intangible assets    
Estimated useful lives of finite lived intangible assets (in years) 30 years  
Customer bases    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period € 2,982,000  
Balance at the end of the period € 2,382,000 2,982,000
Customer bases | Bottom of range [member]    
Intangible assets    
Estimated useful lives of finite lived intangible assets (in years) 2 years  
Customer bases | Maximum [Member]    
Intangible assets    
Estimated useful lives of finite lived intangible assets (in years) 37 years  
Others    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period € 23,000  
Balance at the end of the period 16,000 23,000
Cost    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period 131,784,000 162,128,000
Exchange movements (254,000) (2,081,000)
Additions 2,655,000 2,915,000
Disposals (871,000) (1,977,000)
Transfer of assets held for sale   (30,930,000)
Hyperinflation impacts 1,389,000 1,729,000
Acquisition of subsidiaries 11,000  
Other (45,000)  
Balance at the end of the period 134,669,000 131,784,000
Cost | Goodwill.    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period 77,252,000 96,904,000
Exchange movements (252,000) (1,042,000)
Transfer of assets held for sale   (19,498,000)
Hyperinflation impacts 709,000 888,000
Acquisition of subsidiaries 7,000  
Balance at the end of the period 77,716,000 77,252,000
Cost | Licence and spectrum fees    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period 27,292,000 34,306,000
Exchange movements 62,000 (435,000)
Additions 236,000 283,000
Disposals (98,000) (986,000)
Transfer of assets held for sale   (6,258,000)
Hyperinflation impacts 301,000 382,000
Balance at the end of the period 27,793,000 27,292,000
Cost | Software    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period 17,434,000 18,474,000
Exchange movements (63,000) (414,000)
Additions 2,414,000 2,615,000
Disposals (772,000) (989,000)
Transfer of assets held for sale   (2,600,000)
Hyperinflation impacts 291,000 348,000
Other (45,000)  
Balance at the end of the period 19,259,000 17,434,000
Cost | Customer bases    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period 9,320,000 11,905,000
Exchange movements 17,000 (130,000)
Transfer of assets held for sale   (2,517,000)
Hyperinflation impacts 49,000 62,000
Acquisition of subsidiaries 4,000  
Balance at the end of the period 9,390,000 9,320,000
Cost | Others    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period 486,000 539,000
Exchange movements (18,000) (60,000)
Additions 5,000 17,000
Disposals (1,000) (2,000)
Transfer of assets held for sale   (57,000)
Hyperinflation impacts 39,000 49,000
Balance at the end of the period 511,000 486,000
Accumulated depreciation, amortisation and impairment [member]    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period (92,932,000) (114,921,000)
Exchange movements (268,000) (1,541,000)
Disposals 866,000 1,936,000
Transfer of assets held for sale   24,133,000
Hyperinflation impacts 1,223,000 1,499,000
Amortisation charge for the year 3,695,000 4,122,000
Impairments 4,515,000  
Balance at the end of the period (101,231,000) (92,932,000)
Amortisation charge for the year 3,695,000 4,122,000
Accumulated depreciation, amortisation and impairment [member] | Goodwill.    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period (52,296,000) (69,289,000)
Exchange movements 318,000 897,000
Transfer of assets held for sale   16,984,000
Hyperinflation impacts (709,000) (888,000)
Impairments 4,515,000  
Balance at the end of the period (57,202,000) (52,296,000)
Accumulated depreciation, amortisation and impairment [member] | Licence and spectrum fees    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period (21,731,000) (24,337,000)
Exchange movements (106,000) 144,000
Disposals 98,000 985,000
Transfer of assets held for sale   2,704,000
Hyperinflation impacts (176,000) (196,000)
Amortisation charge for the year 651 1,031,000
Balance at the end of the period (22,566,000) (21,731,000)
Amortisation charge for the year 651 1,031,000
Accumulated depreciation, amortisation and impairment [member] | Software    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period (12,104,000) (12,462,000)
Exchange movements 58,000 324,000
Disposals 767,000 951,000
Transfer of assets held for sale   1,871,000
Hyperinflation impacts (250,000) (304,000)
Amortisation charge for the year 2,431 2,484,000
Balance at the end of the period (13,960,000) (12,104,000)
Amortisation charge for the year 2,431 2,484,000
Accumulated depreciation, amortisation and impairment [member] | Customer bases    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period (6,338,000) (8,307,000)
Exchange movements (16,000) 120,000
Transfer of assets held for sale   2,517,000
Hyperinflation impacts (49,000) (62,000)
Amortisation charge for the year 605 606,000
Balance at the end of the period (7,008,000) (6,338,000)
Amortisation charge for the year 605 606,000
Accumulated depreciation, amortisation and impairment [member] | Others    
Changes in Intangible Assets and Goodwill    
Balance at the beginning of the period (463,000) (526,000)
Exchange movements (14,000) (56,000)
Disposals 1,000  
Transfer of assets held for sale   57,000
Hyperinflation impacts 39,000 49,000
Amortisation charge for the year 8,000 1,000
Balance at the end of the period (495,000) (463,000)
Amortisation charge for the year € 8,000 € 1,000