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Description of Business and Basis of Presentation - Narrative (Details)
$ / shares in Units, $ in Millions
12 Months Ended
Jan. 06, 2020
shares
Dec. 20, 2019
shares
Jun. 18, 2019
USD ($)
$ / shares
shares
Jun. 17, 2019
shares
Feb. 02, 2020
shares
Feb. 03, 2019
shares
Subsidiary, Sale of Stock [Line Items]            
Underwriting discounts and commissions | $     $ 6.2      
Common stock outstanding (in shares)       100    
Common stock conversion ratio     1      
IPO            
Subsidiary, Sale of Stock [Line Items]            
Sale of stock (in dollars per share) | $ / shares     $ 22.00      
Sale of stock | $     $ 110.3      
Class A common stock            
Subsidiary, Sale of Stock [Line Items]            
Common stock outstanding (in shares)     53,475,000   66,445,422 0
Conversion of stock (in shares) 3,850,000 6,352,546 47,875,000      
Class A common stock | IPO            
Subsidiary, Sale of Stock [Line Items]            
Sale of stock (in shares)     5,600,000      
Class B common stock            
Subsidiary, Sale of Stock [Line Items]            
Common stock outstanding (in shares)     345,125,000   334,922,454 0
Conversion of stock (in shares) (3,850,000) (6,352,546) (47,875,000) 393,000,000    
Common stock conversion ratio         1