Discontinued Operations - Schedule of the Components of Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Discontinued Operations
General and administrative expenses	$ 3,427	$ 1,567	$ 5,465	$ 2,323
Loss from discontinued operations		(341)		(914)
Discontinued Operations [Member]
Discontinued Operations
Servicing fees		1,365		3,385
Management fees from affiliates		1,610		3,195
Total revenues		2,975		6,580
General and administrative expenses		3,173		6,729
Loss from discontinued operations before income taxes		(199)		(149)
Income tax provision		(143)		(766)
Loss from discontinued operations		$ (341)		$ (914)