EARNINGS PER SHARE (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
EARNINGS PER SHARE [Abstract]
Net income	$ 17.8	$ 41.2	$ 25.2	$ 72.4
Less: income attributable to noncontrolling interest	(0.4)	(0.2)	(0.9)	(0.6)
Income attributable to Jones	17.4	41.0	24.3	71.8
Less: income allocated to participating securities	(0.4)	(1.4)	(0.4)	(2.2)
Income available to common stockholders of Jones	$ 17.0	$ 39.6	$ 23.9	$ 69.6
Weighted-average shares outstanding - basic (in shares)	74.4	78.6	75.2	80.8
Effect of dilutive employee restricted stock (in shares)	1.0	1.8	0.9	1.5
Weighted-average shares outstanding - diluted (in shares)	75.4	80.4	76.1	82.3
Earnings per common share attributable to Jones
Basic (in dollars per share)	$ 0.23	$ 0.50	$ 0.32	$ 0.86
Diluted (in dollars per share)	$ 0.22	$ 0.49	$ 0.31	$ 0.85