Commitments and Contingencies (Details Textual) In Millions, unless otherwise specified	3 Months Ended
	Apr. 01, 2012 USD ($) bed	Apr. 01, 2012 AUD	Aug. 29, 2011 USD ($)	Aug. 22, 2011 USD ($)	Jun. 22, 2011 USD ($)
Commitments and Contingencies (Textual) [Abstract]
Verdict against the company in wrongful death action					$ 6.5
Court entered judgment against Company				8.4
Amount of bond litigation			10.0
Amount of liability responsible for wrongful death action					3.0
Claims against the company related to property damages including interest	18.6	18.0
Estimated construction capital project cost	107.7
Cost already spent on existing capital projects	66.3
Remaining capital required for capital projects	41.4
Capital expenditure related to facility maintenance cost minimum range	30.0
Capital expenditure related to facility maintenance cost maximum range	35.0
Number of beds under terminated contract	130	130
Number of vacant beds at its idle facilities	7,000	7,000
Carrying values of idle facilities	$ 268.2