CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Mar. 31, 2012	Dec. 31, 2011
Property, plant and equipment, net	$ 1,505,543,000	$ 1,518,532,000
Construction-in-process	413,998,000	370,551,000
Senior unsecured bonds, interest rate	7.00%
Senior unsecured bonds, Unamortized premium	1,667
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	45,430,886	45,430,886
Common stock, shares outstanding	45,430,886	45,430,886
Variable Interest Entity, Primary Beneficiary
Property, plant and equipment, net	1,438,586,000	1,477,580,000
Construction-in-process	$ 299,126,000	$ 271,859,000