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Basis of Presentation and Summary of Significant Accounting Policies (PPE) (Details) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross $ 277,377,000   $ 277,377,000   $ 249,317,000
Less: accumulated depreciation (93,595,000)   (93,595,000)   (88,627,000)
Property, plant and equipment, net 183,782,000   183,782,000   160,690,000
Gain on purchase of property, previously under capital lease     1,100,000    
Depreciation expense 2,300,000 2,200,000 6,800,000 6,641,000  
Land [Member]
          
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross 66,080,000   66,080,000   55,639,000
Buildings and improvements [Member]
          
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross 146,352,000   146,352,000   132,172,000
Furniture, equipment and automobiles [Member]
          
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross $ 64,945,000   $ 64,945,000   $ 61,506,000