Debt Non-Recourse Debt (Details)		6 Months Ended		6 Months Ended
	Jun. 30, 2014 Non Recourse Debt Two Thousand Three Revenue Bonds [Member] USD ($)	Jun. 30, 2014 Non Recourse Debt Northwest Detention Center [Member] USD ($)	Jun. 30, 2014 Non Recourse Debt Two Thousand Eleven Revenue Bonds [Member] USD ($)	Jun. 30, 2014 Australian Subsidiaries Non Recourse Debt [Member] USD ($)	Jun. 30, 2014 Australian Subsidiaries Non Recourse Debt [Member] AUD	Dec. 31, 2013 Australian Subsidiaries Non Recourse Debt [Member] USD ($)	Dec. 31, 2013 Australian Subsidiaries Non Recourse Debt [Member] AUD	Oct. 03, 2013 Senior Note Due 2017 [Member]
Debt Instrument [Line Items]
Face amount	$ 57,000,000.0		$ 54,400,000
Interest rate, minimum rate range		4.10%
Interest rate, maximum rate range		5.25%
Current Portion of Non recourse Debt		11,800,000
Restricted Cash and Cash Equivalents, Current		19,100,000
Total Non-Recourse Debt		61,200,000		22,200,000	23,500,000	23,900,000	26,900,000
Basis spread on variable rate				1.40%	1.40%
Debt Instrument, Interest Rate Terms				variable rate quoted by certain Australian banks plus 140 basis points	variable rate quoted by certain Australian banks plus 140 basis points
Restricted Cash and Cash Equivalents, Noncurrent				$ 4,700,000	5,000,000
Interest rate								7.75%