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Stockholders' Equity/Members' Interest - Change in Ownership (Details) - shares
12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Increase (Decrease) In Stockholders' Equity [Rollforward]      
Beginning balance stockholders' equity (in shares) 114,040,214 102,705,575  
Issuance of Shares (in shares)   10,000,000  
Exchanges during period (in shares) 1,054,231    
Other equity transactions (in shares)   1,334,639  
Ending balance stockholders' equity (in shares) 115,094,445 114,040,214 102,705,575
Voting power (as a percent) 97.00% 96.80% 95.00%
LP Units      
Increase (Decrease) In Stockholders' Equity [Rollforward]      
Number of LP Units outstanding (in shares) 3,689,620 5,151,297  
Number of LP Units exchanged (254,102) (1,461,677)  
Number of LP Units outstanding (in shares) 3,435,518 3,689,620 5,151,297
Common Class A      
Increase (Decrease) In Stockholders' Equity [Rollforward]      
Beginning balance stockholders' equity (in shares) 110,350,594 97,554,278  
Issuance of Shares (in shares) 254,102 10,000,000  
Exchanges during period (in shares) 1,054,231 1,461,677  
Other equity transactions (in shares)   1,334,639  
Ending balance stockholders' equity (in shares) 111,658,927 110,350,594 97,554,278