Stock Options And Restricted Stock (Schedule Of Restricted Common Stock) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Shares, Beginning Balance	776,357		552,988		92,462
Issued	184,446		322,356		552,988
Vested	(383,770)		(98,987)		(92,462)
Canceled/Forfeited	(3,917)
Unvested Shares, Ending Balance	573,116		776,357		552,988
Issued (Weighted average grant date fair value)	$ 13.21		$ 13.35		$ 13.61
Officers And Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Shares, Beginning Balance	754,001	[1]	538,000	[1]	81,307	[1]
Issued	150,000	[1]	300,000	[1]	538,000	[1]
Vested	(355,414)	[1]	(83,999)	[1]	(81,307)	[1]
Canceled/Forfeited	(3,917)	[1]
Unvested Shares, Ending Balance	544,670	[1]	754,001	[1]	538,000	[1]
Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Shares, Beginning Balance	22,356		14,988		11,155
Issued	34,446		22,356		14,988
Vested	(28,356)		(14,988)		(11,155)
Unvested Shares, Ending Balance	28,446		22,356		14,988

[1] Includes grants to the Company's executive officers and certain officers and employees of the Manager prior to Internalization.