XML 59 R34.htm IDEA: XBRL DOCUMENT v2.4.0.8
Equity Transactions and Stock-Based Compensation Plans (Schedule of Restricted Stock Unit Activity) (Details) (Restricted Stock Units (RSUs) [Member], USD $)
3 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2014
Performance-Based RSUs, 2011 [Member]
Jun. 30, 2014
Performance-Based RSUs, 2013 [Member]
Jun. 30, 2013
Time-Based RSUs [Member]
Jun. 30, 2014
Time-Based RSUs [Member]
Jun. 30, 2013
Time-Based RSUs [Member]
Jun. 30, 2013
Performance-Based RSUs [Member]
Jun. 30, 2014
Performance-Based RSUs [Member]
Jun. 30, 2013
Performance-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Share-based Compensation Arrangement by Share-based Payment Award, Actual Achievement Level, Percentage   116.60%              
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Adjusted to Performance Condition Evaluation Number     100.00%            
Granted, Number of Award Units 0     252,749 347,335 406,027 295,873 321,606 346,731
Granted, Weighted-Average Grant-Date Fair Value per Unit       $ 7.54 $ 8.44 $ 7.59 $ 8.33 $ 9.90 $ 8.34