STOCK BASED COMPENSATION - Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Number of Options
Outstanding as of beginning of year (in shares)	3,967,425
Granted (in shares)	0	340,652	430,337
Excerised (in shares)	(49,448)
Forfeited (in shares)	(122,685)
Cancelled or expired (in shares)	(934,824)
Outstanding as of end of year (in shares)	2,860,468	3,967,425
Exercisable as of end of year (in shares)	2,490,182
Weighted Average Exercise Price per Share
Outstanding as of beginning of year (in dollars per share)	$ 96.32
Granted (in dollars per share)	0
Exercised (in dollars per share)	54.21
Forfeited (in dollars per share)	71.95
Cancelled or expired (in dollars per share)	102.67
Outstanding as of end of year (in dollars per share)	96.00	$ 96.32
Exercisable at end of period (in dollars per share)	$ 100.50
Weighted Average Remaining Contractual Life
Outstanding as of December 31, 2020	2 years 6 months
Exercisable as of December 31, 2020	2 years
Total Aggregate Intrinsic Value
Outstanding as of December 31, 2020	$ 6.7
Exercisable as of December 31, 2020	$ 2.2