Consolidated Statements Of Operations (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Potentially dilutive securities that have been excluded from earnings per share:
Potentially Dilutive Securities Excluded from the Denominator (in shares)	2,778,293	4,482,199	4,027,511
Share based payments	$ 9,286	$ 10,803	$ 11,436
Common Units And Vested LTIP Units [Member]
Potentially dilutive securities that have been excluded from earnings per share:
Potentially Dilutive Securities Excluded from the Denominator (in shares)	2,778,293	3,363,169	3,141,981
Unvested Stock Awards and LTIP Units Outstanding [Member]
Potentially dilutive securities that have been excluded from earnings per share:
Potentially Dilutive Securities Excluded from the Denominator (in shares)	0	651,093	358,141
Contingently Issuable Shares [Member]
Potentially dilutive securities that have been excluded from earnings per share:
Potentially Dilutive Securities Excluded from the Denominator (in shares)	0	467,937	527,389