Disposition of Property - Additional Information (Detail) (Lease Termination, USD $) In Thousands, unless otherwise specified	1 Months Ended
	Apr. 30, 2012	Jan. 31, 2012	Sep. 30, 2012
Lease Termination
Assets Disposed of by Method Other than Sale, in Period of Disposition [Line Items]
Underlying indebtedness amount		$ 274
Lease obligation relieved amount	500	550
Net book value of the property		468
Gain (Loss) from the disposition of property	(74)	356
Lease Termination Agreement expiration date	February 2010
Reimbursement of property improvement costs	100
Balance of wraparound mortgage indebtedness, net of discounts			$ 6,048