Property Plant and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Land and land improvements	$ 2,205
Buildings and improvements	1,188	103
Machinery, equipment, furniture and fixtures	4,824	1,764
Construction in process	50,415
Property Plant and equipment before depreciation	58,632	1,867
Less accumulated depreciation	(1,211)	(1,087)
Property Plant and equipment after depreciation	$ 57,421	$ 780