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, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Medical Equipment And Property [Abstract]    
Medical Equipment in rental service $ 39,460 $ 37,252
Medical Equipment in rental service - pump reserve (119) (87)
Accumulated depreciation (23,156) (22,727)
Medical equipment held for sale or rental 2,255 3,664
Total $ 18,440 $ 18,102