Annual report pursuant to Section 13 and 15(d)

Acquisition of Rental Property, Pro Forma Information (Details)

v2.4.0.6
Acquisition of Rental Property, Pro Forma Information (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Business Acquisiton, Pro Forma Information [Line Items]    
Business Acquisition, Pro Forma Revenue $ 336,838 $ 317,021
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax $ 47,687 $ 35,073