SHARE-BASED COMPENSATION (Details 3) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Options Outstanding
Number Outstanding (in shares)	5,795
Weighted Average Remaining Contractual Life	3 years 10 months 20 days
Weighted Average Exercise Price (in dollars per share)	$ 12.23
Options Exercisable
Number Exercisable (in shares)	5,119
Weighted Average Exercise Price (in dollars per share)	$ 12.09
Exercises of Stock Options
Total intrinsic value of stock options exercised	$ 2.2	$ 2.4	$ 2.2
Cash received for payment of the grant price of exercised stock options	0.9	2.9	1.5
Expected tax benefit to be realized from exercised stock options	$ 2.6	$ 1.9	$ 3.8
Stock options | $8.13 to $10.39
Stock options outstanding
Range of exercise prices, low end of the range (in dollars per share)	$ 8.13
Range of exercise prices, high end of the range (in dollars per share)	$ 10.39
Options Outstanding
Number Outstanding (in shares)	2,064
Weighted Average Remaining Contractual Life	2 years 7 months 28 days
Weighted Average Exercise Price (in dollars per share)	$ 9.50
Options Exercisable
Number Exercisable (in shares)	2,064
Weighted Average Exercise Price (in dollars per share)	$ 9.50
Stock options | $10.40 to $12.64
Stock options outstanding
Range of exercise prices, low end of the range (in dollars per share)	$ 10.40
Range of exercise prices, high end of the range (in dollars per share)	$ 12.64
Options Outstanding
Number Outstanding (in shares)	1,249
Weighted Average Remaining Contractual Life	3 years 8 months 12 days
Weighted Average Exercise Price (in dollars per share)	$ 11.34
Options Exercisable
Number Exercisable (in shares)	938
Weighted Average Exercise Price (in dollars per share)	$ 11.33
Stock options | $12.65 to $15.15
Stock options outstanding
Range of exercise prices, low end of the range (in dollars per share)	$ 12.65
Range of exercise prices, high end of the range (in dollars per share)	$ 15.15
Options Outstanding
Number Outstanding (in shares)	1,420
Weighted Average Remaining Contractual Life	4 years 11 months 8 days
Weighted Average Exercise Price (in dollars per share)	$ 13.77
Options Exercisable
Number Exercisable (in shares)	1,203
Weighted Average Exercise Price (in dollars per share)	$ 13.67
Stock options | $15.16 to $18.15
Stock options outstanding
Range of exercise prices, low end of the range (in dollars per share)	$ 15.16
Range of exercise prices, high end of the range (in dollars per share)	$ 18.15
Options Outstanding
Number Outstanding (in shares)	1,062
Weighted Average Remaining Contractual Life	5 years 1 month 6 days
Weighted Average Exercise Price (in dollars per share)	$ 16.53
Options Exercisable
Number Exercisable (in shares)	914
Weighted Average Exercise Price (in dollars per share)	$ 16.61