Components of Interest Expense, Net (Detail) (USD $) In Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010	Sep. 30, 2011		Sep. 30, 2010
Parent						$ 310
Interest related to sale of tax benefits	1,360		1,382	5,236		4,110
Loss on interest rate lock transactions	11,645	[1]		16,380	[1]
Other	14,266		12,072	41,364		32,010
Less - amount capitalized	(3,362)		(2,493)	(8,549)		(6,329)
Interest expense, net	$ 23,909		$ 10,961	$ 54,431		$ 30,101

[1] The interest rate lock transactions are related to the OFC 2 Senior Secured Notes and were not accounted for as hedge transactions (see Note 7).