v3.20.1

Operating Cash Flow (Details) - EUR (€) € in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Adjustment for non-cash transactions |  |  |
Depreciation and amortization | € 12,448 | € 5,081 | € 4,285
Impairment loss |  | 1,083 |
Share-based compensation expenses | 38,297 | 26,757 | 16,536
Decrease (-)/increase in retirement benefit obligations and provisions | (156) | 99 | 23
Unrealized exchange losses/gains (-) and non-cash other financial expenses | 11,169 | (10,063) | 27,457
Discounting effect of deferred income | 6,900 |  |
Fair value re-measurement of share subscription agreement and warrants | 181,644 |  |
Net fair value adjustment current financial investments | 3,081 |  |
Fair value adjustment financial assets held at fair value through profit or loss | (5,355) | (1,203) |
Total adjustment for non-cash transactions | 248,027 | 21,753 | 48,301
Interest expense | 1,302 | 780 | 936
Interest income | (9,247) | (5,219) | (3,045)
Tax expense | 214 | 50 | 198
Total adjustment for items to disclose separately under operating cash flow | (7,731) | (4,389) | (1,912)
Gain on sale of assets | (2) | (668) |
Interest income on current financial investments | (5,059) |  |
Total adjustment for items to disclose separately under investing and financing cash flow | (5,061) | (668) |
Decrease in inventories | 20 | 3 | 22
Increase in receivables | (67,263) | (76) | (27,656)
Increase in liabilities | 79,940 | 19,996 | 14,772
Total change in working capital other than deferred income | € 12,698 | € 19,922 | € (12,862)

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