Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details)

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Summary of Significant Accounting Policies (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
Jun. 30, 2012
Scenario, Previously Reported
Jun. 30, 2012
Scenario, Previously Reported
Dec. 31, 2011
Misapplication Of Accounting Guidance Related To Recognition Of Deferred Tax Asset
Scenario, Previously Reported
Dec. 31, 2011
Over accrual Of Incentive Compensation Cost
Scenario, Previously Reported
Sep. 30, 2012
Misapplication of Accounting Guidance Related to Recognization of Losses Related to Consolidated Real Estate Joint Ventures [Member]
Scenario, Previously Reported
Dec. 31, 2011
Misapplication of Accounting Guidance Related to Recognization of Losses Related to Consolidated Real Estate Joint Ventures [Member]
Scenario, Previously Reported
Dec. 31, 2011
Misapplication of Accounting Guidance Related to Reporting for a Noncontrolling Interest in a Consolidated Real Estate Joint Venture [Member]
Scenario, Previously Reported
Net (loss) income $ (4,405) $ 11,861 $ 10,872 $ 22,096   $ 11,861 $ 18,838 $ 4,000 $ (711) $ 1,800 $ 1,400  
Redeemable noncontrolling interest $ 15,571 $ 9,578 $ 15,571 $ 9,578 $ 10,298 $ 0 $ 0         $ 8,900