Disposition of Property - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended		1 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jan. 31, 2012 Seven Hills, Ohio property	Apr. 30, 2012 Kalamazoo Land
Disposition Of Properties and Discontinued Operations Additional Information [Line Items]
Increase decrease wraparound mortgage payable			$ 274
Finance lease obligations waived			550	500
Property, plant and equipment, Disposals			468
Gain (loss) on sale of property plant equipment			356
Loss from disposition of property	0	74
Buildings and improvements receivable				$ 100