Results from Discontinued Operations Related to Homechoice (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) income from discontinued operations	$ (139)	$ (222)	$ (13,162)
HomeChoice Partners
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues	6,351	67,990	60,174
(Loss) income before income taxes	(223)	(304)	(23,931)
Income tax (benefit) expense	(84)	(82)	(9,548)
(Loss) income from discontinued operations	$ (139)	$ (222)	$ (14,383)