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STOCK-BASED COMPENSATION PLANS - Stock Options Outstanding (Detail)
12 Months Ended
Dec. 31, 2017
$ / shares
shares
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]  
Number of options outstanding (in shares) | shares 983,512
Weighted average exercise price of options outstanding (in dollars per share) | $ / shares $ 40.62
Number of options currently exercisable (in shares) | shares 802,609
Weighted average exercise price of options currently exercisable (in dollars per share) | $ / shares $ 32.52
Under $15.00  
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]  
Number of options outstanding (in shares) | shares 180,000
Weighted average exercise price of options outstanding (in dollars per share) | $ / shares $ 14.50
Weighted average remaining contractual life (in years) 1 year 1 month
Number of options currently exercisable (in shares) | shares 180,000
Weighted average exercise price of options currently exercisable (in dollars per share) | $ / shares $ 14.50
15.00 - 23.00  
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]  
Number of options outstanding (in shares) | shares 193,701
Weighted average exercise price of options outstanding (in dollars per share) | $ / shares $ 18.77
Weighted average remaining contractual life (in years) 1 year 3 months
Number of options currently exercisable (in shares) | shares 193,701
Weighted average exercise price of options currently exercisable (in dollars per share) | $ / shares $ 18.77
23.00 - 30.00  
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]  
Number of options outstanding (in shares) | shares 136,924
Weighted average exercise price of options outstanding (in dollars per share) | $ / shares $ 28.75
Weighted average remaining contractual life (in years) 2 years 9 months
Number of options currently exercisable (in shares) | shares 136,924
Weighted average exercise price of options currently exercisable (in dollars per share) | $ / shares $ 28.75
30.00 - 38.00  
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]  
Number of options outstanding (in shares) | shares 94,496
Weighted average exercise price of options outstanding (in dollars per share) | $ / shares $ 35.24
Weighted average remaining contractual life (in years) 4 years 1 month
Number of options currently exercisable (in shares) | shares 94,496
Weighted average exercise price of options currently exercisable (in dollars per share) | $ / shares $ 35.24
Over 38.00  
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]  
Number of options outstanding (in shares) | shares 378,391
Weighted average exercise price of options outstanding (in dollars per share) | $ / shares $ 69.86
Weighted average remaining contractual life (in years) 7 years
Number of options currently exercisable (in shares) | shares 197,488
Weighted average exercise price of options currently exercisable (in dollars per share) | $ / shares $ 63.72