Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION - RSU Activity (Details)

v3.19.1
STOCK-BASED COMPENSATION - RSU Activity (Details) - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2018
Mar. 30, 2019
Dec. 30, 2017
Dec. 31, 2016
Performance-based        
Number Outstanding        
Nonvested shares, Beginning balance (in shares) 1,504,551 1,438,016    
Granted (in shares) 351,490 19,099    
Issued as Common Stock (in shares) (405,871) 0    
Forfeited/cancelled (in shares) (12,154) (60,439)    
Nonvested shares, Ending balance (in shares) 1,438,016 1,396,676 1,504,551  
Vested (in shares)   859,332    
Weighted Average Grant Date Fair Value        
Nonvested shares, Beginning balance (in USD per share) $ 62.22 $ 61.58    
Granted (in USD per share) 74.80 80.39 $ 53.69 $ 61.31
Issued as Common Stock (in USD per share) 75.33 0.00    
Forfeited/cancelled (in USD per share) 63.64 65.20    
Nonvested shares, Ending balance (in USD per share) $ 61.58 61.68 $ 62.22  
Vested (in USD per share)   $ 61.37    
Nonperformance-based        
Number Outstanding        
Nonvested shares, Beginning balance (in shares) 335,093 696,423    
Granted (in shares) 407,074 82,799    
Issued as Common Stock (in shares) (34,964) (58,165)    
Forfeited/cancelled (in shares) (10,780) (56,224)    
Nonvested shares, Ending balance (in shares) 696,423 664,833 335,093  
Vested (in shares)   69,139    
Weighted Average Grant Date Fair Value        
Nonvested shares, Beginning balance (in USD per share) $ 60.72 $ 69.00    
Granted (in USD per share) 74.80 79.21 $ 57.49 $ 61.83
Issued as Common Stock (in USD per share) 56.11 69.08    
Forfeited/cancelled (in USD per share) 72.45 73.54    
Nonvested shares, Ending balance (in USD per share) $ 69.00 69.88 $ 60.72  
Vested (in USD per share)   $ 74.80