|
Investments and Fair Value Measurements - Category of Financial Instruments Not Held at Fair Value (Parenthetical) (Detail) (Money Market Funds, USD $)
|
Dec. 31, 2014
|
|---|---|
|
Money Market Funds
|
|
| Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] | |
| Quoted market price |
$ 1.00samg_QuotedMarketPricePerCommonShare / us-gaap_CashAndCashEquivalentsAxis = us-gaap_MoneyMarketFundsMember |
| X | ||||||||||
|
- Definition
Quoted market price per common share. No definition available.
|
| X | ||||||||||
|
- Details
|