Investments and Fair Value Measurements - Category of Financial Instruments Not Held at Fair Value (Parenthetical) (Detail)
Dec. 31, 2016
$ / shares
|Money Market Funds|
|Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]|
|Quoted market price||$ 1.00|
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
No definition available.