XML 135 R98.htm IDEA: XBRL DOCUMENT v3.8.0.1
EARNINGS PER COMMON SHARE - Additional Information (Detail) - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Stock Options      
Antidilutive shares excluded from computation of diluted earnings per share      
Shares excluded from computation of diluted earnings per share 4,724 3,411 818
Shares excluded from computation of diluted earnings per share, exercise price, lower range limit (in dollars per share) $ 62.50 $ 83.49 $ 117.09
Shares excluded from computation of diluted earnings per share, exercise price, upper range limit (in dollars per share) $ 141.56 $ 141.56 $ 141.56
Restricted Stock Units (RSUs)      
Antidilutive shares excluded from computation of diluted earnings per share      
Shares excluded from computation of diluted earnings per share 218 48  
Performance-Based Restricted Stock Units      
Antidilutive shares excluded from computation of diluted earnings per share      
Shares excluded from computation of diluted earnings per share 11