CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total Stockholders' Equity [Member]	Consolidated Entity Excluding RSO [Member]	Consolidated Entity Excluding RSO [Member] Noncontrolling Interests [Member]	VIE - RSO [Member]	VIE - RSO [Member] Noncontrolling Interests [Member]
Balance, beginning of period at Dec. 31, 2012	$ 733,790	$ 295	$ 286,048	$ (29,486)	$ (103,472)	$ (2,197)	$ 151,188		$ 279		$ 582,323
Balance, beginning of period (in shares) at Dec. 31, 2012		20,155,732
Increase (Decrease) Equity [Roll Forward]
Net income	22,278			1,609			1,609		(17)		20,686
Treasury shares issued (in shares)		17,697
Treasury shares issued	155		(30)		185		155
Stock-based compensation (in shares)		15,144
Stock-based compensation	640	1	639				640
Repurchases of common stock (in shares)		(13,751)
Repurchases of common stock	(105)				(105)		(105)
Exercise of warrants (in shares)		245,588
Exercise of warrants	1,253	3	1,250				1,253
Cash dividends	(1,205)			(1,205)			(1,205)
Distributions	(84)								(84)
Activity of consolidated VIE	134,879										134,879
Subtotal - other comprehensive income (loss)	6,901					(71)	(71)	(71)		6,972	6,972
Balance, end of period at Jun. 30, 2013	$ 898,502	$ 299	$ 287,907	$ (29,082)	$ (103,392)	$ (2,268)	$ 153,464		$ 178		$ 744,860
Balance, end of period (in shares) at Jun. 30, 2013		20,420,410