OTHER FINANCIAL INFORMATION (Narrative) (Detail) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		9 Months Ended
	Oct. 15, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Dividends declared, date		Jul. 16, 2015
Dividends declared, amount per share		$ 0.125
Dividends payable, date		Aug. 25, 2015
Dividends payable, date of record		Aug. 10, 2015
Payments of dividends		$ 9.0	$ 9.0	$ 26.8	$ 17.9
Income taxes paid				54.4	51.7
Interest paid				19.0	26.0
Interest income				$ 0.8	$ 0.4
Subsequent Event
Dividends declared, date	Oct. 15, 2015
Dividends declared, amount per share	$ 0.125
Dividends payable, date	Nov. 25, 2015
Dividends payable, date of record	Nov. 10, 2015