Summary of Significant Accounting Policies - Schedule of Property, Plant and Equipment (Detail) |
12 Months Ended |
|---|---|
Dec. 31, 2016 | |
| Building and Improvements [Member] | Minimum [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Estimated life | 5 years |
| Building and Improvements [Member] | Maximum [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Estimated life | 40 years |
| Furniture and Equipment [Member] | Minimum [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Estimated life | 3 years |
| Furniture and Equipment [Member] | Maximum [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Estimated life | 10 years |
| Vehicles [Member] | Minimum [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Estimated life | 5 years |
| Vehicles [Member] | Maximum [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Estimated life | 10 years |
| Software Development [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Estimated life | 3 years |