EARNINGS PER SHARE (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 06, 2013	Jun. 30, 2012	Jul. 06, 2013	Jun. 30, 2012
EARNINGS PER SHARE [Abstract]
Net (loss) income	$ (3.2)	$ 8.4	$ (2.3)	$ 7.4
Less: income attributable to noncontrolling interest	0.2	0.3	0.6	0.5
(Loss) income attributable to Jones	(3.4)	8.1	(2.9)	6.9
Less: (loss)income allocated to participating securities	(0.1)	0.2	(0.2)	0
(Loss) income available to common stockholders of Jones	$ (3.3)	$ 7.9	$ (2.7)	$ 6.9
Weighted-average shares outstanding - basic (in shares)	73.1	75.2	73.2	75.7
Effect of dilutive employee restricted stock (in shares)		0.8		1.8
Weighted-average shares outstanding - diluted (in shares)	73.1	76.0	73.2	77.5
(loss) earnings per common share attributable to Jones
Basic (in dollars per share)	$ (0.05)	$ 0.11	$ (0.04)	$ 0.09
Diluted (in dollars per share)	$ (0.05)	$ 0.10	$ (0.04)	$ 0.09