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Commitment and Contingencies - Narratives (Details) - USD ($)
$ in Millions
1 Months Ended
Nov. 30, 2016
Jan. 25, 2020
Jan. 26, 2019
Oct. 29, 2016
Loss Contingencies [Line Items]        
Loss contingency, estimated loss       $ 13.0
Loss contingency accrual, payments $ 0.1      
Guarantor Obligations, Maximum Exposure, Undiscounted   $ 23.4 $ 23.2  
Letters of credit outstanding amount   52.3 48.6  
Standby Letters of Credit        
Loss Contingencies [Line Items]        
Letters of credit outstanding amount   48.6    
Performance Guarantee and Surety Bond [Member]        
Loss Contingencies [Line Items]        
Guarantor obligations, carrying value   $ 156.1 $ 123.5