Quarterly report pursuant to Section 13 or 15(d)

Medical Equipment and Property - Summary of Medical Equipment (Detail)

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Medical Equipment and Property - Summary of Medical Equipment (Detail) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Medical Equipment And Property [Abstract]    
Medical equipment held for sale or rental $ 2,426 $ 2,277
Medical Equipment in rental service 56,785 53,681
Medical Equipment in rental service - pump reserve (291) (232)
Accumulated depreciation (26,695) (25,612)
Medical Equipment in rental service - net 29,799 27,837
Total $ 32,225 $ 30,114