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Quarterly Financial Information (Unaudited) - Summary of Unaudited Quarterly Results of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
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Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenues | $ 61,514 | $ 54,267 | [1] | $ 51,667 | [1] | $ 53,494 | $ 55,361 | $ 44,330 | $ 37,270 | $ 48,284 | $ 220,942 | $ 185,245 | $ 335,053
Gross profit | 16,528 | 14,468 |  | 15,323 |  | 12,634 | 12,506 | 10,486 | 3,987 | 10,068 | 58,953 | 37,047 | 68,294
Net loss attributable to common shareholders | $ (14,393) | $ (20,847) |  | $ (9,220) |  | $ (7,826) | $ (4,446) | $ (8,832) | $ (17,415) | $ (8,981) | $ (52,286) | $ (39,674) | $ (43,413)
Basic and diluted net loss per share attributable to common shareholders | $ (0.26) | $ (0.38) |  | $ (0.17) |  | $ (0.17) |  |  |  |  | $ (0.99) | $ (1.05) | $ (1.28)
Basic net loss per share attributable to common shareholders |  |  |  |  |  |  | $ (0.10) | $ (0.23) | $ (0.51) | $ (0.26) |  |  |
Diluted net loss per share attributable to common shareholders |  |  |  |  |  |  | $ (0.13) | $ (0.23) | $ (0.51) | $ (0.26) |  |  |
Correction of immaterial error |  | $ 300 |  | $ 3,100 |  |  |  |  |  |  |  |  |
[1] | Net revenues for the second and third quarter of 2015 have been retrospectively revised by $3.1 million and $0.3 million, respectively, to correct an immaterial error of certain contra revenue, previously reported within costs of net revenues, as a decrease to net revenues.

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