From time to time, tenants may vacate space due to lease buy-outs, elections not to renew their leases, insolvency or lease rejection in the bankruptcy process. In these cases, we assess whether we can obtain the highest value from the property by re-leasing or selling it. In addition, in certain cases, we may try to sell a property that is occupied. When it is appropriate to do so under current accounting guidance for the disposal of long-lived assets, we classify the property as an asset held for sale on our consolidated balance sheet and the current and prior period results of operations of the property are reclassified as discontinued operations.

The results of operations for properties that are held for sale or have been sold are reflected in the consolidated financial statements as discontinued operations for all periods presented and are summarized as follows (in thousands):


		Three Months Ended June 30,				Six Months Ended June 30,
		2011		2010		2011		2010
Revenues		$	2	$	882	$	222	$	2,128
Expenses			(38)		(427)		(139)		(1,090)
(Loss) gain on sale of real estate			(121)		56		660		460
Impairment charges			-		(985)		-		(8,137)
	(Loss) income from discontinued operations	$	(157)	$	(474)	$	743	$	(6,639)

2011 — During the six months ended June 30, 2011, we sold four domestic properties for $10.6 million, net of selling costs, and recognized a net gain on these sales of $0.7 million, excluding impairment charges of $2.3 million previously recognized during the six months ended June 30, 2010. Net gain recognized during the six months ended June 30, 2011 included a net loss of $0.1 million related to properties sold during the second quarter of 2011.

2010 — During the six months ended June 30, 2010, we sold four domestic properties for $9.2 million, net of selling costs, and recognized a net gain on these sales of $0.5 million, excluding impairment charges of $5.1 million that were previously recognized in 2009. In addition, in April and May 2010, we entered into two agreements to sell three properties for a total of approximately $5.6 million. In connection with these proposed sales, we recorded impairment charges totaling $1.0 million and $5.9 million in the three and six months ended June 30, 2010, respectively, to reduce the carrying values of these properties to their contracted selling prices. We completed these sales during the third quarter of 2010.