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Stock-Based Compensation Level 3 Stock-Based Compensation (Tables)
6 Months Ended
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