Net Income (Loss) Per Share (Details Textuals) $ / shares in Units, $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
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Jun. 30, 2016
USD ($)
shares
$ / shares
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Jun. 30, 2015
shares
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Jun. 30, 2016
USD ($)
class
shares
$ / shares
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Jun. 30, 2015
shares
|
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| Earnings Per Share [Abstract] | ||||
| Tax Adjustments, Settlements, and Unusual Provisions | $ | $ 3.5 | $ 5.1 | ||
| New Accounting Pronouncement Impact, Incremental Dilutive Share Increase | 910,000 | 868,000 | ||
| New Accounting Pronouncement Impact to Diluted Earnings-per-share | $ / shares | $ 0.04 | $ 0.06 | ||
| Number Of Class Of Stock Outstanding | class | 2 | |||
| Common stock equivalents excluded from the calculation of net loss per share (shares) | 1,200,000 | 4,300,000 | 700,000 | 5,700,000 |
| X | ||||||||||
- Definition New Accounting Pronouncement Impact, Incremental Dilutive Share Increase No definition available.
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- Definition New Accounting Pronouncement Impact to Diluted Earnings-per-share No definition available.
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- Definition Number of class of stock outstanding. No definition available.
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| X | ||||||||||
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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