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Expenses by Nature - Other Operating Income and Expenses, Components (Details) - EUR (€)
€ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Details by nature:      
Changes in trade provisions € (19,811) € (23,125) € 3,648
Professional services 244,355 211,305 211,579
Commissions 32,178 21,941 18,473
Supplies and auxiliary materials 170,021 149,831 131,932
Operating leases (note 9) 33,235    
Operating leases (note 9)   84,299 80,136
Freight 130,663 112,340 105,292
Repair and maintenance expenses 136,377 107,806 103,518
Advertising 59,063 44,659 49,893
Insurance 25,647 22,632 21,529
Royalties 10,674 10,726 11,241
Travel expenses 61,346 51,428 58,171
External services 64,099 53,391 82,699
R&D Expenses 103,053 100,889 89,977
Other 40,903 48,104 38,470
Total other operating income and expenses € 1,091,803 € 996,226 € 1,006,558