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Stock-Based Compensation Level 3 Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock Option Activity [Table Text Block] | The following is a summary of our stock option activity:
|  | Number of Options |  | Weighted Average Exercise Price Per Option |  | Weighted Average Remaining Contractual Life |  | Aggregate Intrinsic Value
|  |  |  |  |  | (years) |  | (thousands)
Outstanding, December 31, 2012 |  | — |  |  | $ | — |  |  |  |  |
Granted |  | 161,257 |  |  | 27.19 |  |  |  |  |
Outstanding, June 30, 2013 |  | 161,257 |  |  | $ | 27.19 |  |  | 9.7 |  |  | $ | — |
Vested and expected to vest, June 30, 2013 |  | 132,484 |  |  | $ | 27.19 |  |  | 9.7 |  |  | $ | — |
Exercisable, June 30, 2013 |  | — |  |  | $ | — |  |  | — |  |  | $ | — |
Assumptions Used to Calculate Fair Value of Stock Options [Table Text Block] | The fair value for stock option awards was estimated at the grant date using the Black-Scholes option valuation model with the following weighted average assumptions:
| Six Months Ended June 30, 2013
Expected volatility | 60.9 | %
Expected life (in years) | 6.0 |
Risk-free interest rate | 1.0 | %
Expected dividends | — |
Weighted average fair value per option granted | $ | 14.87 |
Nonvested Share Activity [Table Text Block] | The following summarizes the activity of our PSUs and RSUs awarded under the 2013 Incentive Plan for the six months ended June 30, 2013:
|  | Number of shares |  | Weighted Average Grant-Date Fair Value
Unvested, December 31, 2012 |  | — |  |  | $ | — |
Granted |  | 104,285 |  |  | 26.65 |
Unvested, June 30, 2013 |  | 104,285 |  |  | $ | 26.65 |
Stock-Based Compensation Expense Recognized [Table Text Block] | Total stock-based compensation recognized from stock options, PSUs, and RSUs, net of estimated forfeitures, was as follows:
|  | Three Months Ended June 30, 2013 |  | Six Months Ended June 30, 2013
|  | (thousands)
Stock options |  | $ | 195 |  |  | $ | 268 |
PSUs and RSUs |  | 635 |  |  | 805 |
Total |  | $ | 830 |  |  | $ | 1,073 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each type of share-based compensation award and any related tax benefits. + References No definition available. + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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