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Basic and Diluted Net Loss Per Share | 12 Months Ended
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Dec. 31, 2018
Earnings Per Share [Abstract] |
Basic and Diluted Loss Per Share | Basic and Diluted Net Loss Per Share Basic and diluted net loss per share were the same, as any additional common stock equivalents would be anti-dilutive. We excluded 2.1 million, 2.6 million and 2.9 million stock options from the calculation of diluted weighted-average net loss per share for the years ended December 31, 2018, 2017 and 2016, respectively, which would be anti-dilutive due to the net loss in those periods. In addition, we excluded 2.6 million, 3.8 million and 4.9 million RSUs from the calculation of diluted weighted-average net loss per share for the years ended December 31, 2018, 2017 and 2016, respectively, which would be anti-dilutive due to the net loss in those periods.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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