Other Assets (Schedule Of Other Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Other Assets [Abstract]
Long-term investments	$ 7,884	$ 8,140
Prepaid land rent	191,615	158,176
Straight-line rent receivable	302,893	267,682
Deferred lease costs, net	29,660	30,577
Deferred financing fees, net	2,979	3,919
Other	52,343	32,760
Total other assets	$ 587,374	$ 501,254