Segment Information (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment revenue information
Rental revenue	$ 170,304	$ 112,053
Other revenue	1,391	252
Total revenue	171,695	112,305
Apparel
Segment revenue information
Rental revenue	3,395	1,452
Automotive service
Segment revenue information
Rental revenue	3,945	3,768
Automotive tire services
Segment revenue information
Rental revenue	6,819	5,649
Beverages
Segment revenue information
Rental revenue	6,179	6,105
Child care
Segment revenue information
Rental revenue	5,252	5,279
Convenience stores
Segment revenue information
Rental revenue	20,270	19,230
Dollar stores
Segment revenue information
Rental revenue	9,594	36
Drug stores
Segment revenue information
Rental revenue	10,203	4,031
Financial services
Segment revenue information
Rental revenue	3,278	682
Food processing
Segment revenue information
Rental revenue	2,681	1,416
Grocery stores
Segment revenue information
Rental revenue	5,527	4,465
Health and fitness
Segment revenue information
Rental revenue	10,303	7,971
Health care
Segment revenue information
Rental revenue	3,083	62
Restaurants-casual dining
Segment revenue information
Rental revenue	9,563	8,694
Restaurant-quick service
Segment revenue information
Rental revenue	8,321	7,070
Theaters
Segment revenue information
Rental revenue	11,508	11,132
Transportation services
Segment revenue information
Rental revenue	8,877	2,709
Wholesale club
Segment revenue information
Rental revenue	5,970	3,025
Other non-reportable segments
Segment revenue information
Rental revenue	$ 35,536	$ 19,277