Medical Equipment and Property - Additional Information (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2017 |
Jun. 30, 2016 |
Jun. 30, 2017 |
Jun. 30, 2016 |
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| Property, Plant and Equipment [Abstract] | ||||
| Depreciation expense for medical equipment | $ 1.6 | $ 1.6 | $ 3.2 | $ 3.1 |
| X | ||||||||||
- Definition Depreciation expense related to medical equipment. No definition available.
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| X | ||||||||||
- References No definition available.
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