Real Estate (Redeemable Noncontrolling Interest) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Noncontrolling Interest [Line Items]
Redeemable noncontrolling interests	$ 13,203,000	$ 11,199,000
Not Currently Redeemable [Member]
Noncontrolling Interest [Line Items]
Redeemable noncontrolling interests	9,300,000	9,900,000
Redeemable estimated redemption value	$ 23,600,000	$ 23,600,000

As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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The aggregate fair value as of the reporting date of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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