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Earnings (Loss) per Share Level 1 (Notes) | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Earnings (Loss) Per Common Share | For additional information, see Note 15 - Equity and Note 19 - Stock Compensation Plans of Notes to Consolidated Financial Statements. Basic earnings per share is computed based on the weighted average number of common shares outstanding during the year. Diluted earnings per share includes the dilutive effect of assumed exercise or issuance of warrants and stock-based awards under compensation plans. Diluted potential common shares are included in the calculation of diluted per share amounts provided there is income from continuing operations, net of tax. Under the treasury stock method, for warrants and stock-based awards, shares are assumed to be issued and then reduced for the number of shares repurchaseable with theoretical proceeds at the average market price for the period. Contingently issuable shares are included for the number of shares issuable assuming the end of the reporting period was the end of the contingency period, if dilutive.

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