Annual report pursuant to Section 13 and 15(d)

Business Combinations - Additional Information (Detail)

v3.3.1.900
Business Combinations - Additional Information (Detail)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2015
USD ($)
Apr. 20, 2015
USD ($)
InfusionPump
Medical_Facility
Mar. 31, 2014
Dec. 31, 2015
Business Acquisition [Line Items]        
Property and equipment, estimated remaining lives     5 years 7 years
Minimum [Member]        
Business Acquisition [Line Items]        
Property and equipment, estimated remaining lives       3 years
Maximum [Member]        
Business Acquisition [Line Items]        
Property and equipment, estimated remaining lives       7 years
Ciscura [Member]        
Business Acquisition [Line Items]        
Purchase price   $ 6.2    
Number of medical facility relationships prior to acquisition | Medical_Facility   100    
Number of infusion pumps acquired | InfusionPump   1,800    
Ciscura [Member] | General and Administrative Expenses [Member]        
Business Acquisition [Line Items]        
Professional and other related expenses $ 0.7      
Ciscura [Member] | Minimum [Member]        
Business Acquisition [Line Items]        
Property and equipment, estimated remaining lives       1 year
Ciscura [Member] | Maximum [Member]        
Business Acquisition [Line Items]        
Property and equipment, estimated remaining lives       7 years