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Transactions with Total and Total S.A.- 0.875% Debentures Due 2021 (Details)
1 Months Ended 6 Months Ended
Jun. 29, 2014
shares
Jun. 28, 2020
USD ($)
shares
Jun. 30, 2019
USD ($)
Dec. 29, 2019
USD ($)
Jun. 30, 2014
USD ($)
$ / shares
Related Party Transaction [Line Items]          
Debt face amount   $ 957,671,000   $ 1,045,966,000  
Cash paid for repurchase of convertible debt   $ 87,141,000 $ 0    
0.875% debentures due 2021          
Related Party Transaction [Line Items]          
Interest rate   0.875%     0.875%
Debt face amount         $ 400,000,000.0
Conversion ratio 20.5071        
Debt instrument, convertible, conversion price (in dollars per share) | $ / shares         $ 48.76
Convertible debt repurchased   $ 90,300,000      
Cash paid for repurchase of convertible debt   $ 87,100,000      
0.875% debentures due 2021 | Total          
Related Party Transaction [Line Items]          
Debt face amount         $ 250,000,000.0
Shares to be acquired | shares 5,126,775 3,969,375      
Convertible debt repurchased   $ 56,400,000      
Face Value Per Note          
Related Party Transaction [Line Items]          
Debt face amount         $ 1,000