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Significant Accounting Policies (Details)
 12 Months Ended
Dec. 31, 2015
USD ($)
Segment
Region
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Depreciation Amortization Impairment [Line Items]      
Number of business segments | Segment 1    
Number of regions | Region 6    
Federal debt ceiling in connection with deficit reductions 10 years    
Reductions in federal spending $ 1,200,000,000,000    
Medicare spending cut percentage 2.00%    
Expected reduction in Medicare spending percentage 2.00%    
Combined physical therapy/speech language pathology expenses $ 3,700    
Percentage of practice expense component 100.00%    
Net revenue from Medicare accounts $ 73,200,000    
Difference between net revenues and corresponding cash collections, approximately of net revenues 1.00%    
Maximum difference between actual aggregate contractual reserve and estimated contractual allowance reserve 1.00%    
Minimum difference between actual aggregate contractual reserve and estimated contractual allowance reserve 1.00%    
Minimum percentage of fair value reporting unit less than carrying amount 50.00%    
Unrecognized tax benefit $ 0 $ 0  
Accrued interest and penalties associated with any unrecognized tax benefits 0 0 $ 0
Interest expense recognized $ 0 $ 0  
Year 2016 [Member]      
Depreciation Amortization Impairment [Line Items]      
Percentage of medicare payment (0.30%)    
Expected reduction in Medicare spending percentage 2.00%    
Year 2017 [Member]      
Depreciation Amortization Impairment [Line Items]      
Expected reduction in Medicare spending percentage 2.00%    
January 1, 2015 through June 30, 2015 [Member]      
Depreciation Amortization Impairment [Line Items]      
Percentage of medicare payment 0.00%    
July 1, 2015 through December 31, 2015 [Member]      
Depreciation Amortization Impairment [Line Items]      
Percentage of medicare payment 0.50%    
From 2017 through 2019 [Member]      
Depreciation Amortization Impairment [Line Items]      
Percentage of medicare payment 0.50%    
Minimum [Member] | Furniture & Equipment [Member]      
Depreciation Amortization Impairment [Line Items]      
Estimated useful lives 3 years    
Minimum [Member] | Computer Software, Intangible Asset [Member]      
Depreciation Amortization Impairment [Line Items]      
Estimated useful lives 3 years    
Minimum [Member] | Leasehold Improvements [Member]      
Depreciation Amortization Impairment [Line Items]      
Estimated useful lives 3 years    
Maximum [Member]      
Depreciation Amortization Impairment [Line Items]      
Annual limit on physical therapy and speech language pathology services $ 1,940    
Annual limit occupational therapy services 1,940    
Maximum [Member] | Year 2016 [Member]      
Depreciation Amortization Impairment [Line Items]      
Annual limit on physical therapy and speech language pathology services 1,960    
Annual limit occupational therapy services $ 1,960    
Maximum [Member] | Furniture & Equipment [Member]      
Depreciation Amortization Impairment [Line Items]      
Estimated useful lives 8 years    
Maximum [Member] | Computer Software, Intangible Asset [Member]      
Depreciation Amortization Impairment [Line Items]      
Estimated useful lives 7 years    
Maximum [Member] | Leasehold Improvements [Member]      
Depreciation Amortization Impairment [Line Items]      
Estimated useful lives 5 years