SHARE-BASED AWARDS (Details) (USD $) In Thousands, except Share data, unless otherwise specified		12 Months Ended			0 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 Stock options	Dec. 31, 2012 Stock options	Dec. 31, 2011 Stock options	Jan. 28, 2010 2007 Plan	Dec. 31, 2013 2007 Plan item	Dec. 31, 2013 2007 Plan Discretionary Grant Program	Mar. 31, 2013 2007 Plan Stock Issuance Program Performance Vesting	Dec. 31, 2013 2007 Plan Stock options	Dec. 31, 2013 2007 Plan Stock options Discretionary Grant Program	Dec. 31, 2013 2007 Plan Performance-Based Restricted Stock Units Stock Issuance Program	Dec. 31, 2013 2007 Plan Time-Based Restricted Stock Units Stock Issuance Program	Dec. 31, 2013 2007 Plan Restricted Stock Units	Dec. 31, 2013 2007 Plan Restricted Stock Units Automatic Grant Program	Dec. 31, 2013 1998 Plan Stock options	Dec. 31, 2013 Predecessor Plans 1998 Plan Stock options	Dec. 31, 2013 Predecessor Plans 1998 Plan Performance-Based Restricted Stock Units	Dec. 31, 2013 Predecessor Plans 1998 Plan Time-Based Restricted Stock Units	Dec. 31, 2013 Predecessor Plan 1998 Directors' Plan Stock options
Share-based awards
Common stock initially available for future issuance (in shares)						2,200,000							8,700,000
Common stock available for future issuance (in shares)													6,400,000
Additional shares of authorized for issuance					2,200,000
Number of shares to be issued upon exercise of outstanding options, warrants and rights	1,200,000
Number of separate incentive compensation programs						4
Number of share based compensation plans within the entity's incentive compensation programs						3
Minimum exercise price as a percentage of fair market value of common stock										100.00%
Exercisable period							3 years												3 years
Vesting period of awards granted											3 years	3 years		3 years		3 years	1 year	3 years
Average ROIC, period for measurement								3 years
TSR modifier, period for measurement								3 years
Weighted percentage of the entities comprising each index considered for calculation of total shareholder return								50.00%
Continuous service period for vesting of shares issuable on the basis of the performance-vesting criteria								3 years
Expiration Term										10 years						10 years
Period of time within for an option to be exercised for eligibility for reload feature and new stock option grant																5 years
Ratio to convert original option price under reload feature																1.5
Number of shares that can be purchased with the annual option																			8,000
Options granted, weighted average grant-date fair value (in dollars per share)			$ 10.74	$ 8.92									$ 26.66
Weighted average valuation assumptions
Expected volatility (as a percent)			31.80%	29.20%
Expected term			6 years 1 month 6 days	6 years
Risk-free interest rate (as a percent)			1.20%	2.30%
Dividend yield (as a percent)			2.70%	3.10%
Activity in the entity's stock option plans
Outstanding, beginning of period (in shares)		1,353,000							954,000						253,000				146,000
Exercised (in shares)		(155,000)							(106,000)						(43,000)				(6,000)
Forfeited and expired (in shares)		(6,000)							(4,000)						(2,000)
Outstanding, end of period (in shares)		1,192,000	1,353,000						844,000						208,000				140,000
Exercisable (in shares)		1,010,000							662,000						208,000				140,000
Granted (in shares)																0			0
Weighted average exercise price
Outstanding, weighted average exercise price, beginning of period (in dollars per share)		$ 21.15
Exercised, weighted average exercise price (in dollars per share)		$ 20.48
Forfeited and expired, weighted average exercise price (in dollars per share)		$ 21.05
Outstanding, weighted average exercise price, end of period (in dollars per share)		$ 21.24	$ 21.15
Exercisable, weighted average exercise price (in dollars per share)		$ 21.08
Outstanding, weighted average contractual life		4 years 8 months 12 days
Exercisable, weighted average contractual life		4 years 2 months 12 days
Outstanding, aggregate intrinsic value (in dollars)		$ 6,033
Exercisable, aggregate intrinsic value (in dollars)		$ 5,273