Annual report pursuant to Section 13 and 15(d)

Basis of Presentation and Nature of Operations - Additional Information (Detail)

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Basis of Presentation and Nature of Operations - Additional Information (Detail)
12 Months Ended
Dec. 31, 2015
Location
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Number of locations in United States and Canada 5
Concentration risk of ambulatory pumps purchased, percentage 10.00%