EARNINGS PER SHARE (Details) (USD $) In Millions, except Per Share data	3 Months Ended		9 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 02, 2010
Earnings Per Share [Abstract]
Net income	$ 41.2	$ 29.2	$ 72.4	$ 94.4
Less: income attributable to noncontrolling interest	(0.2)	(0.1)	(0.6)	(0.5)
Income attributable to Jones	41.0	29.1	71.8	93.9
Less: income allocated to participating securities	(1.4)	(1.3)	(2.2)	(4.2)
Income available to common stockholders of Jones	$ 39.6	$ 27.8	$ 69.6	$ 89.7
Weighted-average shares outstanding - basic	78.6	82.2	80.8	82.1
Effect of dilutive employee stock options and restricted stock	1.8	0.7	1.5	0.6
Weighted-average shares outstanding - diluted	80.4	82.9	82.3	82.7
Earnings per common share attributable to Jones - Basic [Abstract]
Basic earnings per share	$ 0.50	$ 0.34	$ 0.86	$ 1.09
Earnings per common share attributable to Jones - Diluted [Abstract]
Diluted earnings per share	$ 0.49	$ 0.34	$ 0.85	$ 1.09