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Acquisitions (Detail)
$ in Millions
1 Months Ended 3 Months Ended
Feb. 01, 2017
USD ($)
Agencies
Mar. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]      
Long Term Debt   $ 92.4 $ 93.0
Promissory Notes [Member]      
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]      
Long Term Debt   1.1 $ 0.7
Massachusetts [Member] | Home Staff, L.L.C. [Member] | Personal Care [Member]      
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]      
Acquisition, total purchase price $ 4.0    
Acquisition, number of care centers acquired | Agencies 3    
Acquisition, recorded other assets and liabilities   0.5  
Additions   3.8  
Massachusetts [Member] | Home Staff, L.L.C. [Member] | Personal Care [Member] | Promissory Notes [Member]      
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]      
Long Term Debt $ 0.4    
Massachusetts [Member] | Home Staff, L.L.C. [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   2 years 9 months 18 days