Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013 Segment	Dec. 31, 2012	Dec. 31, 2011
Organization And Significant Accounting Policies [Line Items]
Derivatives at fair value, net	$ 0
Redemption of on cumulative perpetual preferred stock held by non-controlling interest		1,600,000
Non-controlling interest	$ 2,000	$ 1,000	$ 2,000
Tax credit Carry forward period	20 years
Non voting interest	99.90%
Interest percentage for general partners	0.10%
Tax credit as Percentage of project cost	39.00%
Number of Reportable Segments	1
Minimum [Member]
Organization And Significant Accounting Policies [Line Items]
Interest at the end of compliance period	10.00%
Maximum [Member]
Organization And Significant Accounting Policies [Line Items]
Interest at the end of compliance period	25.00%
Low- Income Housing credits [Member]
Organization And Significant Accounting Policies [Line Items]
Compliance Period	15 years
Low- Income Housing credits [Member] | Minimum [Member]
Organization And Significant Accounting Policies [Line Items]
Federal Tax Credit, Adjustment Period	10 years
Low- Income Housing credits [Member] | Maximum [Member]
Organization And Significant Accounting Policies [Line Items]
Federal Tax Credit, Adjustment Period	15 years
Historic credits [Member]
Organization And Significant Accounting Policies [Line Items]
Federal Tax Credit, Adjustment Period	10 years
Compliance Period	5 years
Federal NMTC [Member]
Organization And Significant Accounting Policies [Line Items]
Federal Tax Credit, Adjustment Period	7 years
First Three Years [Member]
Organization And Significant Accounting Policies [Line Items]
Tax credit as Percentage of project cost	5.00%
Next Four Years [Member]
Organization And Significant Accounting Policies [Line Items]
Tax credit as Percentage of project cost	6.00%