Schedule of Estimated Useful Lives of Property and Equipment (Detail) |
12 Months Ended |
|---|---|
Dec. 31, 2015 | |
| Building [Member] | |
| Property Plant And Equipment [Line Items] | |
| Useful Life | 39 years |
| Leasehold Improvements [Member] | |
| Property Plant And Equipment [Line Items] | |
| Estimated Useful Life | Lesser of life or lease or expected useful life |
| Equipment And Furniture [Member] | Minimum [Member] | |
| Property Plant And Equipment [Line Items] | |
| Useful Life | 3 years |
| Equipment And Furniture [Member] | Maximum [Member] | |
| Property Plant And Equipment [Line Items] | |
| Useful Life | 7 years |
| Vehicles [Member] | |
| Property Plant And Equipment [Line Items] | |
| Useful Life | 5 years |
| Computer Software [Member] | Minimum [Member] | |
| Property Plant And Equipment [Line Items] | |
| Useful Life | 3 years |
| Computer Software [Member] | Maximum [Member] | |
| Property Plant And Equipment [Line Items] | |
| Useful Life | 7 years |