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Redeemable Convertible Preferred Stock (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
3 Months Ended | 0 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Mar. 31, 2014
|
Apr. 02, 2014
Subsequent event
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Jun. 30, 2009
Series A
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Mar. 31, 2014
Series A
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Dec. 31, 2013
Series A
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Feb. 28, 2010
Series B
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Mar. 31, 2014
Series B
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Dec. 31, 2013
Series B
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Mar. 31, 2011
Series C
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Mar. 31, 2014
Series C
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Dec. 31, 2013
Series C
|
Jan. 31, 2013
Series D
|
Mar. 31, 2012
Series D
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Mar. 31, 2014
Series D
|
Dec. 31, 2013
Series D
|
|
| Issuances of redeemable convertible preferred stock | |||||||||||||||
| Purchase Price per Share (in dollars per share) | $ 13.00 | $ 1.27 | $ 4.46 | $ 7.34 | $ 7.81 | $ 7.81 | |||||||||
| Number of Shares | 10,033,976 | 10,033,976 | 10,033,976 | 5,057,901 | 5,057,901 | 5,057,901 | 4,429,601 | 4,429,601 | 4,429,601 | 639,828 | 3,339,902 | 3,979,730 | 3,979,730 | ||
| Conversion Price per Share (in dollars per share) | $ 1.27 | $ 4.46 | $ 7.34 | $ 7.81 | $ 7.81 | ||||||||||
| Summary of activity for the Preferred Stock issued and outstanding | |||||||||||||||
| Balance at the beginning of the period | $ 98,047 | $ 12,384 | $ 22,210 | $ 32,405 | $ 31,048 | ||||||||||
| Accretion of issuance costs on redeemable convertible preferred stock | (87) | 35 | 36 | 11 | 5 | ||||||||||
| Balance at the end of the period | $ 98,134 | $ 12,419 | $ 22,246 | $ 32,416 | $ 31,053 | ||||||||||
| Redeemable convertible preferred stock converted into shares of common stock | 23,501,208 | ||||||||||||||