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Acquisitions (Detail)
$ in Millions
2 Months Ended 3 Months Ended 8 Months Ended
Mar. 01, 2016
USD ($)
Agencies
Sep. 30, 2016
USD ($)
Jun. 30, 2016
USD ($)
Mar. 31, 2016
USD ($)
Sep. 01, 2016
USD ($)
Agencies
Dec. 31, 2015
USD ($)
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]            
Long Term Debt   $ 94.1       $ 96.6
Promissory Notes [Member]            
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]            
Long Term Debt   0.7       $ 0.0
Massachusetts [Member] | Associated Homecare [Member] | Personal Care [Member]            
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]            
Acquisition, total purchase price $ 27.7          
Acquisition, number of care centers acquired | Agencies 9          
Acquisition, recorded other assets and liabilities     $ 0.2 $ 4.2    
Escrow depost for indemnification purposes and working capital price adjustments $ 0.5          
Additions       $ 23.5    
Goodwill purchase accounting adjustments     (5.0)      
Massachusetts [Member] | Associated Homecare [Member] | Personal Care [Member] | Acquired Name Of Business [Member]            
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]            
Acquisition, other intangibles recorded     3.5      
Massachusetts [Member] | Associated Homecare [Member] | Personal Care [Member] | Noncompete Agreements [Member]            
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]            
Acquisition, other intangibles recorded     $ 1.3      
Weighted-average amortization period     2 years 1 month 6 days      
Massachusetts [Member] | Professional Profiles [Member] | Personal Care [Member]            
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]            
Acquisition, total purchase price         $ 4.4  
Acquisition, number of care centers acquired | Agencies         4  
Additions   4.2        
Massachusetts [Member] | Professional Profiles [Member] | Personal Care [Member] | Promissory Notes [Member]            
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]            
Long Term Debt         $ 0.7  
Massachusetts [Member] | Professional Profiles [Member] | Personal Care [Member] | Noncompete Agreements [Member]            
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]            
Acquisition, other intangibles recorded   $ 0.2        
Weighted-average amortization period   10 months 24 days