EARNINGS PER SHARE (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 05, 2013	Sep. 29, 2012	Oct. 05, 2013	Sep. 29, 2012
EARNINGS PER SHARE [Abstract]
Net income	$ 29.7	$ 17.8	$ 27.4	$ 25.2
Less: income attributable to noncontrolling interest	0.4	0.4	1.0	0.9
Income attributable to Jones	29.3	17.4	26.4	24.3
Less: income allocated to participating securities	1.0	0.4	0.9	0.4
Income available to common stockholders of Jones	$ 28.3	$ 17.0	$ 25.5	$ 23.9
Weighted-average shares outstanding - basic (in shares)	72.8	74.4	73.1	75.2
Effect of dilutive employee restricted stock (in shares)	1.3	1.0	1.3	0.9
Weighted-average shares outstanding - diluted (in shares)	74.1	75.4	74.4	76.1
Earnings per common share attributable to Jones
Basic (in dollars per share)	$ 0.39	$ 0.23	$ 0.35	$ 0.32
Diluted (in dollars per share)	$ 0.38	$ 0.22	$ 0.34	$ 0.31