Consolidated Financial Statements - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014 Dwellings
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Amount payable to lessors	$ 112,690
Amount payable to lessors in percentage	12.70%
Number of concentration by bank to lessors of Residential Buildings and Dwellings	1
Maximum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Percentage of insurance commission revenue of total revenue	1.00%
Water St. [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Number of reportable segment	1
Water St. [Member] | Maximum [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Percentage of insurance commission revenue of total revenue	1.00%