EARNINGS PER SHARE (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share Reconciliation [Abstract]
Basic weighted-average shares outstanding (shares)	47,224	48,175	47,466	48,055
Dilutive effect of stock options and deferred stock compensation (shares)	1,034	1,064	1,021	1,105
Diluted weighted-average shares outstanding (shares)	48,258	49,239	48,487	49,160