Segment Reporting (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Segment
Dec. 31, 2014
Segment Reporting Information [Line Items]    
Number of reportable segments 3  
Corporate asset $ 175,470 $ 201,279
Hzo Investment [Member]    
Segment Reporting Information [Line Items]    
Corporate asset $ 0 $ 0