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Collaborative and Other Relationships - Pretax Profit Sharing Formula (Details) - GAZYVA	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Co-promotion profit sharing formula
Until First GAZYVA Threshold Date	39.00%
After First GA101 Threshold Date
After First GAZYVA Threshold Date until Second GAZYVA Threshold Date	37.50%	37.50%	37.50%
After Second GAZYVA Threshold Date	35.00%