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Fair value measurements - Acquisition unobservable level 3 inputs (Details) - Fair Value, Inputs, Level 3 - Valuation Technique, Discounted Cash Flow - Measurement Input, Discount Rate
Jul. 03, 2021
Minimum  
Business Acquisition [Line Items]  
Payment discount rate 5.0
Maximum  
Business Acquisition [Line Items]  
Payment discount rate 6.8