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Property and Equipment (Details) - USD ($)
$ in Thousands
Sep. 30, 2015
Sep. 30, 2014
Property, Plant and Equipment [Line Items]    
Total property and equipment $ 171,075 $ 144,636
Less accumulated depreciation (36,925) (30,674)
Property and equipment, net 134,150 113,962
Equipment    
Property, Plant and Equipment [Line Items]    
Total property and equipment 26,239 24,113
Buildings and land    
Property, Plant and Equipment [Line Items]    
Total property and equipment 108,967 87,818
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Total property and equipment 28,273 25,428
Furniture    
Property, Plant and Equipment [Line Items]    
Total property and equipment $ 7,596 $ 7,277