Consolidated Statement Of Operations (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Potentially dilutive securities that have been excluded from earnings per share:
Share Based Payments	$ 1,992	$ 1,923	$ 6,819	$ 6,322
Potentially Dilutive Securities Excluded from the Denominator	6,914,716	10,205,462	6,986,004	10,272,419
Common Units Of Limited Partnership Interest [Member]
Potentially dilutive securities that have been excluded from earnings per share:
Potentially Dilutive Securities Excluded from the Denominator	6,914,716	7,172,832	6,986,004	7,231,104
Unvested Stock Awards Outstanding [Member]
Potentially dilutive securities that have been excluded from earnings per share:
Potentially Dilutive Securities Excluded from the Denominator		687,551		308,654
Contingently Issuable Share Awards [Member]
Potentially dilutive securities that have been excluded from earnings per share:
Potentially Dilutive Securities Excluded from the Denominator		2,345,079		2,364,550
Options To Acquire Common Shares Outstanding [Member]
Potentially dilutive securities that have been excluded from earnings per share:
Potentially Dilutive Securities Excluded from the Denominator				368,111