Net Income (Loss) Per Share - Calculations of Net Income (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
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Basic: | |||||||||||||||||||||
Net loss | $ (21,701) | $ (24,085) | $ 38,976 | $ (15,452) | $ (14,271) | $ (11,628) | $ (19,022) | $ (14,603) | $ (22,262) | $ (59,524) | $ (5,149) | ||||||||||
Basic (in shares) | 20,343 | 20,874 | 20,975 | ||||||||||||||||||
Net income (loss) per share (in dollars per share) | $ (1.07) | [1] | $ (1.18) | [1] | $ 1.92 | [1] | $ (0.76) | [1] | $ (0.69) | [1] | $ (0.56) | [1] | $ (0.91) | [1] | $ (0.70) | [1] | $ (1.09) | $ (2.85) | $ (0.25) | ||
Diluted: | |||||||||||||||||||||
Net loss | $ (21,701) | $ (24,085) | $ 38,976 | $ (15,452) | $ (14,271) | $ (11,628) | $ (19,022) | $ (14,603) | $ (22,262) | $ (59,524) | $ (5,149) | ||||||||||
Diluted (in shares) | 20,343 | 20,874 | 20,975 | ||||||||||||||||||
Net income (loss) per share (in dollars per share) | $ (1.07) | [1] | $ (1.18) | [1] | $ 1.70 | [1] | $ (0.76) | [1] | $ (0.69) | [1] | $ (0.56) | [1] | $ (0.91) | [1] | $ (0.70) | [1] | $ (1.09) | $ (2.85) | $ (0.25) | ||
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