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Impairment Testing Of Intangible Assets With Indefinite Useful Lives - Summary Of The Intangible Assets With Indefinite Useful Lives (Detail)
€ in Thousands
Dec. 31, 2022
EUR (€)
Dec. 31, 2021
EUR (€)
Disclosure of information for cash-generating units [line items]    
Net carrying amount, Goodwill € 69,323 € 69,323
Long Term Growth Rate [Member] | Lanvin [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.0129 0.0097
Long Term Growth Rate [Member] | Wolford [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.0237 0.0176
Long Term Growth Rate [Member] | St. John [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.0248 0.0188
Long Term Growth Rate [Member] | Sergio Rossi [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.0143 0.0109
Goodwill [member]    
Disclosure of information for cash-generating units [line items]    
Net carrying amount, Goodwill € 69,323 € 69,323
Goodwill [member] | Lanvin [Member]    
Disclosure of information for cash-generating units [line items]    
Net carrying amount, Goodwill 45,931 45,931
Goodwill [member] | Wolford [Member]    
Disclosure of information for cash-generating units [line items]    
Net carrying amount, Goodwill 11,701 11,701
Goodwill [member] | St. John [Member]    
Disclosure of information for cash-generating units [line items]    
Net carrying amount, Goodwill € 11,691 € 11,691
Goodwill [member] | WACC [member] | Lanvin [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.1445 0.1370
Goodwill [member] | WACC [member] | Wolford [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.1434 0.1330
Goodwill [member] | WACC [member] | St. John [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.1436 0.1346
Brands [member]    
Disclosure of information for cash-generating units [line items]    
Net carrying amount € 172,334 € 172,334
Brands [member] | Lanvin [Member]    
Disclosure of information for cash-generating units [line items]    
Net carrying amount 100,906 100,906
Brands [member] | Wolford [Member]    
Disclosure of information for cash-generating units [line items]    
Net carrying amount 37,856 37,856
Brands [member] | St. John [Member]    
Disclosure of information for cash-generating units [line items]    
Net carrying amount 30,271 30,271
Brands [member] | Sergio Rossi [Member]    
Disclosure of information for cash-generating units [line items]    
Net carrying amount € 3,301 € 3,301
Brands [member] | WACC [member] | Lanvin [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.1645 0.1570
Brands [member] | WACC [member] | Wolford [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.1634 0.1530
Brands [member] | WACC [member] | St. John [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.1636 0.1546
Brands [member] | WACC [member] | Sergio Rossi [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.2001 0.1567
Brands [member] | Royalty Rate [Member] | Lanvin [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.0518 0.0518
Brands [member] | Royalty Rate [Member] | Wolford [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.0250 0.0250
Brands [member] | Royalty Rate [Member] | St. John [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.0344 0.0344
Brands [member] | Royalty Rate [Member] | Sergio Rossi [Member]    
Disclosure of information for cash-generating units [line items]    
Significant unobservable input, assets 0.0125 0.0125