Equity Method Investments (Details) (USD $) Share data in Millions, unless otherwise specified				3 Months Ended	6 Months Ended	12 Months Ended			3 Months Ended		6 Months Ended
	Jun. 30, 2013	Dec. 30, 2012	Jun. 30, 2013 CCPV [Member]	Dec. 30, 2012 Diamond Energy [Member]	Jun. 30, 2013 AUOSP [Member]	Jan. 01, 2012 Woongjin Energy [Member]	Jul. 03, 2011 Woongjin Energy [Member]	Jun. 30, 2010 Woongjin Energy [Member]	Jun. 30, 2013 Equity Method Investee [Member]	Jul. 01, 2012 Equity Method Investee [Member]	Jun. 30, 2013 Equity Method Investee [Member]	Jul. 01, 2012 Equity Method Investee [Member]	Dec. 30, 2012 Equity Method Investee [Member]	Jun. 30, 2013 CCPV [Member]	Jun. 30, 2013 Diamond Energy [Member]	Jun. 30, 2013 AUOSP [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	$ 112,193,000	$ 111,516,000
Subsidiary or Equity Method Investee, Additional Issuance of Shares to Investors Outside the Consolidated Group								15.9
Equity Method Investment, Shares Sold						15.5
Accounts receivable									12,056,000		12,056,000		17,847,000
Accounts payable	400,000	700,000							52,090,000		52,090,000		63,469,000
Payments made to joint ventures for products/services									107,136,000	149,279,000	226,079,000	329,267,000
Payments to Acquire Equity Method Investments				3,000,000
Joint Venture, Energy Output Committed to Purchase in Years Two Through Seven					80.00%
Future Financing Obligation																241,000,000
Potential Additional Financing Obligation if Requested by Joint Venture																50,000,000
Future Financing Obligations Upon Close of Joint Venture Agreement														16,200,000
Notes, Loans and Financing Receivable, Gross, Noncurrent									$ 1,824,000		$ 1,824,000		$ 1,040,000
Loan receivable, interest rate															1.00%
Equity Method Investment, Ownership Percentage			25.00%	25.00%	50.00%	6.00%	31.00%