Medical Equipment - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Property, Plant and Equipment [Abstract] | ||
| Depreciation expense for medical equipment | $ 6.3 | $ 4.8 |
| X | ||||||||||
- Definition Depreciation expense related to medical equipment. No definition available.
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| X | ||||||||||
- References No definition available.
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