Fair Value of Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Jan. 01, 2012	Jan. 02, 2011	Aug. 31, 2010	Oct. 03, 2013 5.875% Senior Notes Senior Notes	Dec. 31, 2013 7.75% Senior Notes Senior Notes	Oct. 20, 2009 7.75% Senior Notes Senior Notes	Dec. 31, 2013 6.625% Senior Notes Senior Notes	Mar. 19, 2013 6.625% Senior Notes Senior Notes	Feb. 10, 2011 6.625% Senior Notes Senior Notes	Mar. 19, 2013 5.125% Senior Notes Senior Notes	Dec. 31, 2013 Carrying Value	Dec. 31, 2012 Carrying Value	Dec. 31, 2013 Carrying Value 5.875% Senior Notes	Dec. 31, 2012 Carrying Value 7.75% Senior Notes	Dec. 31, 2013 Carrying Value 6.625% Senior Notes	Dec. 31, 2012 Carrying Value 6.625% Senior Notes	Dec. 31, 2013 Carrying Value 5.125% Senior Notes	Dec. 31, 2013 Carrying Value Other non recourse debt including current portion	Dec. 31, 2012 Carrying Value Other non recourse debt including current portion	Dec. 31, 2013 Total Fair Value	Dec. 31, 2012 Total Fair Value	Dec. 31, 2013 Total Fair Value 5.875% Senior Notes	Dec. 31, 2012 Total Fair Value 7.75% Senior Notes	Dec. 31, 2013 Total Fair Value 6.625% Senior Notes	Dec. 31, 2012 Total Fair Value 6.625% Senior Notes	Dec. 31, 2013 Total Fair Value 5.125% Senior Notes	Dec. 31, 2013 Total Fair Value Other non recourse debt including current portion	Dec. 31, 2012 Total Fair Value Other non recourse debt including current portion	Dec. 31, 2013 Level 1	Dec. 31, 2012 Level 1	Dec. 31, 2013 Level 1 5.875% Senior Notes	Dec. 31, 2012 Level 1 7.75% Senior Notes	Dec. 31, 2013 Level 1 6.625% Senior Notes	Dec. 31, 2012 Level 1 6.625% Senior Notes	Dec. 31, 2013 Level 1 5.125% Senior Notes	Dec. 31, 2013 Level 1 Other non recourse debt including current portion	Dec. 31, 2012 Level 1 Other non recourse debt including current portion	Dec. 31, 2013 Level 2	Dec. 31, 2012 Level 2	Dec. 31, 2013 Level 2 5.875% Senior Notes	Dec. 31, 2012 Level 2 7.75% Senior Notes	Dec. 31, 2013 Level 2 6.625% Senior Notes	Dec. 31, 2012 Level 2 6.625% Senior Notes	Dec. 31, 2013 Level 2 5.125% Senior Notes	Dec. 31, 2013 Level 2 Other non recourse debt including current portion	Dec. 31, 2012 Level 2 Other non recourse debt including current portion	Dec. 31, 2013 Level 3	Dec. 31, 2012 Level 3	Dec. 31, 2013 Level 3 5.875% Senior Notes	Dec. 31, 2012 Level 3 7.75% Senior Notes	Dec. 31, 2013 Level 3 6.625% Senior Notes	Dec. 31, 2012 Level 3 6.625% Senior Notes	Dec. 31, 2013 Level 3 5.125% Senior Notes	Dec. 31, 2013 Level 3 Other non recourse debt including current portion	Dec. 31, 2012 Level 3 Other non recourse debt including current portion	Dec. 31, 2013 Australian Subsidiary Carrying Value	Dec. 31, 2012 Australian Subsidiary Carrying Value	Dec. 31, 2013 Australian Subsidiary Total Fair Value	Dec. 31, 2012 Australian Subsidiary Total Fair Value	Dec. 31, 2013 Australian Subsidiary Level 1	Dec. 31, 2012 Australian Subsidiary Level 1	Dec. 31, 2013 Australian Subsidiary Level 2	Dec. 31, 2012 Australian Subsidiary Level 2	Dec. 31, 2013 Australian Subsidiary Level 3	Dec. 31, 2012 Australian Subsidiary Level 3
Assets:
Cash and cash equivalents	$ 52,125	$ 31,755	$ 43,378	$ 38,088									$ 52,125	$ 31,755								$ 52,125	$ 31,755								$ 52,125	$ 31,755								$ 0	$ 0								$ 0	$ 0
Restricted cash													14,592	34,950								14,592	34,950								1,838	1,765								12,754	33,185								0	0
Liabilities:
Borrowings under the Senior Credit Facility													638,500	797,430								639,246	803,097								0	0								639,246	803,097								0	0
Debt instrument, face amount						250,000		250,000			300,000	300,000			250,000	247,543	300,000	300,000	300,000						270,313		335,814							0		0							270,313		335,814							0		0
Debt Instrument, Fair Value Disclosure																								265,938		317,064		279,000					0		0		0					265,938		317,064		279,000					0		0		0
Non-recourse debt																				$ 60,235	$ 88,650								$ 62,319	$ 91,345								$ 0	$ 0								$ 62,319	$ 91,345								$ 0	$ 0	$ 23,896	$ 34,832	$ 24,439	$ 34,973	$ 0	$ 0	$ 24,439	$ 34,973	$ 0	$ 0
Stated interest rate					8.47%	5.875%	7.75%		6.625%	6.625%	6.625%	5.125%