XML 110 R85.htm IDEA: XBRL DOCUMENT v3.20.1
SHARE-BASED COMPENSATION - Stock Units and Director Stock Grants (Detail) - Stock and Stock Units - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
No. of Stock Units      
Beginning of year (in shares) 856    
Granted (in shares) 374    
Vested and settled (in shares) (378)    
Cancelled (in shares) (68)    
End of year (in shares) 784 856  
Weighted Average Fair Value      
Beginning of year (in USD per share) $ 18.79    
Granted (in USD per share) 16.57 $ 18.79 $ 13.64
Vested and settled (in USD per share) 19.59    
Cancelled (in USD per share) 18.64    
Stock and stock units, end of year (in USD per share) $ 17.35 $ 18.79