Operations and Summary of Significant Accounting Policies - Estimated Economic Lives of Property and Equipment (Detail) |
12 Months Ended |
---|---|
Dec. 31, 2016 | |
Property, Plant and Equipment [Line Items] | |
Leasehold improvements | Shorter of underlying lease term or asset life |
Buildings [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 29 years |
Minimum [Member] | Furniture and fixtures [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 2 years |
Minimum [Member] | Equipment [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 3 years |
Minimum [Member] | Software [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 3 years |
Maximum [Member] | Furniture and fixtures [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 7 years |
Maximum [Member] | Equipment [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 5 years |
Maximum [Member] | Software [Member] | |
Property, Plant and Equipment [Line Items] | |
Useful Life | 10 years |