Other Assets and Liabilities - Schedule of other Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Other Assets [Line Items]
Rent leveling and above market leases	$ 349,634	$ 337,812
Leasing commissions	218,506	220,602
Value added taxes receivable	110,906	93,721
Prepaid assets	104,012	89,620
Fixed assets	90,177	53,525
Management contracts	66,466	89,427
Loan fees	49,344	57,266
Other notes receivable	34,763	37,734
Deferred income taxes	31,733	35,565
Other assets	67,512	57,508
Totals	$ 1,123,053	$ 1,072,780