Other Assets (Schedule Of Other Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Other Assets [Abstract]
Long-term investments	$ 8,140	$ 44,095
Prepaid land rent	158,176	134,148
Straight-line rent receivable	267,682	230,384
Deferred lease costs, net	30,577	28,517
Other	32,762	29,899
Total other assets	$ 497,337	$ 467,043