Noncontrolling Interests Redeemable Interest in Property Partnerships (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 30, 2013
Redeemable Interest in Property Partnership [Abstract]
Beginning Balance	$ 97,558
Net loss	(1,523)
Distributions	(3,935)
Adjustment to reflect redeemable interest at redemption value	6,549
Ending Balance	$ 98,649

Temporary Equity, Carrying Amount Redeemable Interest in Property Partnerships

No definition available.

Name:	cik_TemporaryEquityCarryingAmountRedeemableInterestInPropertyPartnerships
Namespace Prefix:	cik_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant