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Business and Basis of Presentation (Additional Information) (Detail) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2015
Schedule Of Summary Of Significant Accounting Policies [Line Items] |  |
Highly-liquid debt instruments maturity days | 90 days |
Minimum [Member] | Equipment and Furnishings [Member] |  |
Schedule Of Summary Of Significant Accounting Policies [Line Items] |  |
Estimated useful lives |  | 3 years
Maximum [Member] | Equipment and Furnishings [Member] |  |
Schedule Of Summary Of Significant Accounting Policies [Line Items] |  |
Estimated useful lives |  | 5 years

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- Definition Maximum Maturity Period To Consider All Highly Liquid Debt Instruments As Cash And Cash Equivalents + References No definition available. + Details
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- Definition Schedule Of Summary Of Significant Accounting Policies [Line Items] + References No definition available. + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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- Details
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