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Basis of Presentation and Summary of Significant Accounting Policies (PPE) (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross $ 268,078,000   $ 268,078,000   $ 249,317,000
Less: accumulated depreciation (91,795,000)   (91,795,000)   (88,627,000)
Property, plant and equipment, net 176,283,000   176,283,000   160,690,000
Gain on purchase of property, previously under capital lease     1,100,000    
Depreciation expense 2,300,000 2,200,000 4,500,000 4,400,000  
Land [Member]
          
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross 62,435,000   62,435,000   55,639,000
Buildings and improvements [Member]
          
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross 141,763,000   141,763,000   132,172,000
Furniture, equipment and automobiles [Member]
          
Property, Plant and Equipment [Line Items]          
Property, plant and equipment, gross $ 63,880,000   $ 63,880,000   $ 61,506,000