Discontinued Operations - Summary of Amount Reported as Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Discontinued Operations And Disposal Groups [Abstract]
Total revenue		$ 456
Property operations and maintenance expense		(158)
Real estate tax expense		(41)
Depreciation and amortization expense		(89)
Net realized gain on sale of property			2,400
Total income from discontinued operations		$ 168