Earnings Per Share (Notes)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

The Company computes basic earnings per share by dividing net income for the period by the weighted average number of shares of common stock outstanding during the period. Diluted earnings per share is computed by dividing the net income for the period by the weighted average number of shares of common stock outstanding during the period and including the dilutive effect of common stock that would be issued assuming conversion or exercise of outstanding convertible notes and stock-based compensation awards.

The effects of approximately 2 million and 3 million total outperform stock appreciation rights ("OSOs"), restricted stock units ("RSUs"), and performance restricted stock units ("PRSUs") outstanding at September 30, 2016 have been included in the computation of diluted earnings per share for the three and nine months ended September 30, 2016, respectively. Approximately 1 million of PRSUs granted in 2015 and 2016 were excluded from the computation of diluted earnings per share for the three and nine months ended September 30, 2016, as they were contingently issuable and no shares would have been issued if these periods were the end of the contingency period. The effect of approximately 4 million total OSOs and RSUs outstanding at September 30, 2015 has been included in the computation of diluted earnings per share for the three months and nine months ended September 30, 2015. PRSUs were excluded from the computation of diluted earnings per share for the three and nine months ended September 30, 2015, as they were contingently issuable and no shares would have been issued if these periods were the end of the contingency period.