Reconciliation of Net Operating Income to Net Income (Detail) (USD $) In Thousands, unless otherwise specified	8 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Net operating income		$ 42,074	$ 40,832	$ 40,693
Depreciation and amortization		(14,898)	(12,909)	(12,994)
General and administrative expenses		(6,937)	(3,232)	(3,728)
Impairment charges		(580)
Interest expense		(12,303)	(16,561)	(18,134)
Loss on extinguishment of debt		(2,387)		(3,448)
Gain on acquisitions		9,460
Other income		297	777	258
Results from discontinued operations			(10)	(381)
Income tax provision		(273)	0	0
Net income	$ 12,433	$ 14,453	$ 8,897	$ 2,266