Quarterly report pursuant to sections 13 or 15(d)

Rentals Under Operating Leases - Future Minimum Rentals to be Received Under Noncancelable Tenant Operating Leases (Detail)

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Rentals Under Operating Leases - Future Minimum Rentals to be Received Under Noncancelable Tenant Operating Leases (Detail) (USD $)
Sep. 30, 2012
Schedule Of Operating Leases Future Minimum Payments Receivable [Line Items]  
2013 $ 1,587,456
2014 1,401,399
2015 1,257,354
2016 1,078,687
2017 900,759
Thereafter 511,602
Total 6,737,257
Subsidiaries [Member]
 
Schedule Of Operating Leases Future Minimum Payments Receivable [Line Items]  
2013 1,988,730
2014 1,839,927
2015 1,628,514
2016 1,404,618
2017 1,234,969
Thereafter 1,395,917
Total $ 9,492,675