SHARE-BASED COMPENSATION - Stock Options (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation	$ 12.3	$ 7.9	$ 7.3
No. of Options
Shares under option, beginning of year (in shares)	79
Granted (in shares)	0
Exercised (in shares)	0
Cancelled (in shares)	0
Expired (in shares)	(27)
Shares under option, end of year (in shares)	52	79
Exercisable at end of year (in shares)	52
Weighted Average Exercise Price
Shares under option, beginning of year (in USD per share)	$ 31.94
Granted (in USD per share)	0.00
Exercised (in USD per share)	0.00
Cancelled (in USD per share)	0.00
Expired (in USD per share)	30.75
Shares under option, end of year (in USD per share)	32.56	$ 31.94
Exercisable at end of year (in USD per share)	$ 32.56
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option year term	10 years
Share-based compensation	$ 0.0	$ 0.1	$ 0.2