Contingent Liabilities - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013 Property	Dec. 31, 2012
Commitments And Contingencies Disclosure [Abstract]
Maximum disposition fee on sale of partnership properties	3.00%
Number of partnership properties for sale	3
Percentage of disposition fees to be escrowed	50.00%
Amount of recovery of funds	$ 4,500,000
Recovery level		6,000,000
Payable fee on achieving recovery level		$ 16,296