EARNINGS PER SHARE (Detail) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share Reconciliation [Abstract]
Basic weighted-average shares outstanding (shares)	46,366	48,067	47,082	48,054
Dilutive effect of stock options and deferred stock compensation (shares)	1,029	1,034	1,024	1,082
Diluted weighted-average shares outstanding (shares)	47,395	49,101	48,106	49,136