Fair Value Measurements and Marketable Securities - Additional Information (Detail)
|
12 Months Ended |
---|---|
Dec. 31, 2012
D
|
|
Schedule of Available-for-sale Securities [Line Items] | |
Weighted average days to maturity | 133 |
Shares of common stock to be purchased with warrants | 11,600,000 |
Maximum [Member]
|
|
Schedule of Available-for-sale Securities [Line Items] | |
Available for sale securities, longest maturity date | 2014-04 |
X | ||||||||||
- Definition
Available for sale securities debt maturities Month. No definition available.
|
X | ||||||||||
- Definition
Weighted Average Days To Maturity No definition available.
|
X | ||||||||||
- Definition
Aggregate amount of each class of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Details
|