| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | Period [Axis] |
|---|
2016-01-01 - 2016-12-31 |
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Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | |
Summary of stock options outstanding and exercisable under long-term performance compensation plan | A summary of activity related to SOSARs is included below: | | | | | | | | | | | | | | Year ended December 31, | (in thousands) | 2016 | | 2015 | | 2014 | Total intrinsic value of SOSARs exercised | $ | — |
| | $ | — |
| | $ | 5,193 |
| Total fair value of shares vested | $ | — |
| | $ | — |
| | $ | — |
|
|
Summary of valuation assumptions | | | | | | 2015 | Risk free interest rate | 1.80 | % | Dividend yield | 1.58 | % | Volatility factor of the expected market price of the common shares | 0.35 |
| Expected life for the options (in years) | 5.50 |
|
| | | | | 2016 | Risk free interest rate | 0.96 | % | Dividend yield | — | % | Volatility factor of the expected market price of the common shares | 0.37 |
| Expected term (in years) | 2.83 |
| Correlation coefficient | 0.43 |
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Schedule of stock options rollforward | A reconciliation of the number of Options outstanding and exercisable under the 2014 LT Plan as of December 31, 2016, and changes during the period then ended is as follows: | | | | | | | | | | | | | | |
Shares (000's) | |
Weighted- Average Exercise Price | | Weighted- Average Remaining Contractual Term | | Aggregate Intrinsic Value (000's) | Options outstanding at January 1, 2016 | 325 |
| | $ | 35.40 |
| | | | | Options granted | — |
| | — |
| | | | | Options exercised | — |
| | — |
| | | | | Options cancelled / forfeited | — |
| | — |
| | | | | Options outstanding at December 31, 2016 | 325 |
| | $ | 35.40 |
| | 5.84 | | $ | 3,023 |
| Vested and expected to vest at December 31, 2016 | 323 |
| | $ | 35.40 |
| | 5.84 | | $ | 3,002 |
| Options exercisable at December 31, 2016 | 108 |
| | $ | 35.40 |
| | 5.84 | | $ | 1,008 |
|
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Summary of stock options | | | | | | | Year ended December 31, | (in thousands) | 2016 | Total intrinsic value of Options exercised | $ | — |
| Total fair value of shares vested | $ | 1,123 |
| Weighted average fair value of Options granted | $ | — |
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Summary of nonvested restricted shares | A summary of the status of the Company's non-vested restricted shares as of December 31, 2016, and changes during the period then ended, is presented below: | | | | | | | | | Shares (000)'s | | Weighted-Average Grant-Date Fair Value | Non-vested restricted shares at January 1, 2016 | 151 |
| | $ | 44.99 |
| Granted | 177 |
| | 27.20 |
| Vested | (92 | ) | | 43.61 |
| Forfeited | (13 | ) | | 36.45 |
| Non-vested restricted shares at December 31, 2016 | 223 |
| | $ | 31.93 |
|
| | | | | | | | Year ended December 31, | | 2016 | | 2015 | | 2014 | Total fair value of shares vested (000's) | $4,038 | | $4,918 | | $1,585 | Weighted average fair value of restricted shares granted | $27.20 | | $42.32 | | $54.84 |
|
Summary of nonvested performance share units | A summary of the status of the Company's EPS PSUs as of December 31, 2016, and changes during the period then ended, is presented below: | | | | | | | | | Shares (000)'s | | Weighted-Average Grant-Date Fair Value | Non-vested at January 1, 2016 | 311 |
| | $ | 48.53 |
| Granted | 130 |
| | 27.54 |
| Vested | — |
| | — |
| Forfeited | (137 | ) | | 45.9 |
| Non-vested at December 31, 2016 | 304 |
| | $ | 40.76 |
|
| | | | | | | | Year ended December 31, | | 2016 | | 2015 | | 2014 | Weighted average fair value of PSUs granted | $27.54 | | $44.76 | | $54.84 |
A summary of the status of the Company's PSUs as of December 31, 2016, and changes during the period then ended, is presented below: | | | | | | | | | Shares (000)'s | | Weighted-Average Grant-Date Fair Value | Non-vested at January 1, 2016 | — |
| | $ | — |
| Granted | 130 |
| | 26.43 |
| Vested | — |
| | — |
| Forfeited | (12 | ) | | 26.43 |
| Non-vested at December 31, 2016 | 118 |
| | $ | 26.43 |
|
| | | | | | | | | | Year ended December 31, | | 2016 | | 2015 | | 2014 | Weighted average fair value of PSUs granted | $ | 26.43 |
| | $— | | $— |
|
Fair value of the option component of the ESP Plan | | | | | | | | | | | | 2016 | | 2015 | | 2014 | Risk free interest rate | 0.61 | % | | 0.25 | % | | 0.13 | % | Dividend yield | 1.96 | % | | 1.05 | % | | 0.74 | % | Volatility factor of the expected market price of the common shares | 0.36 |
| | 0.41 |
| | 0.23 |
| Expected life for the options (in years) | 1.00 |
| | 1.00 |
| | 1.00 |
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