Disclosure about Fair Value of Financial Instruments (Details 1) - USD ($)		Sep. 30, 2015		Dec. 31, 2014
The Market approach utilized to measure fair value of financial assets and liabilities on recurring basis
Available-for-sale equity investments		$ 40,241,000	[1]	$ 0
Foreign currency forward contracts	[2]	83,947,000
Redeemable OP unitholder interests		111,380,000		$ 46,722,000
Totals		235,568,000
Level 1 [Member]
The Market approach utilized to measure fair value of financial assets and liabilities on recurring basis
Available-for-sale equity investments	[1]	40,241,000
Totals		40,241,000
Level 2 [Member]
The Market approach utilized to measure fair value of financial assets and liabilities on recurring basis
Foreign currency forward contracts	[2]	83,947,000
Redeemable OP unitholder interests		111,380,000
Totals		$ 195,327,000

[1] (1) Unrealized gains or losses on equity investments are recorded in accumulated other comprehensive income (loss) at each measurement date.

[2] (2) Please see Note 11 for additional information.