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Basis of Presentation and Summary of Significant Accounting Policies (PPE) (Details) (USD $)
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3 Months Ended | 6 Months Ended | |||
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Jun. 30, 2014
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Jun. 30, 2013
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Jun. 30, 2014
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Jun. 30, 2013
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Dec. 31, 2013
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| 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 | |
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Land [Member]
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| Property, Plant and Equipment [Line Items] | |||||
| Property, plant and equipment, gross | 62,435,000 | 62,435,000 | 55,639,000 | ||
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Buildings and improvements [Member]
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| Property, Plant and Equipment [Line Items] | |||||
| Property, plant and equipment, gross | 141,763,000 | 141,763,000 | 132,172,000 | ||
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Furniture, equipment and automobiles [Member]
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| Property, Plant and Equipment [Line Items] | |||||
| Property, plant and equipment, gross | $ 63,880,000 | $ 63,880,000 | $ 61,506,000 | ||