Annual report pursuant to Section 13 and 15(d)

Business Combinations - Additional Information (Detail)

v3.6.0.2
Business Combinations - Additional Information (Detail)
$ in Millions
 12 Months Ended
Dec. 31, 2015
USD ($)
Apr. 20, 2015
USD ($)
Medical_Facility
InfusionPump
Dec. 31, 2016
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