XML 41 R29.htm IDEA: XBRL DOCUMENT
v2.4.1.9

STOCK-BASED COMPENSATION (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
Class of Stock [Line Items] |
Estimated On Date of Grant Binomial Option-Pricing Model | The fair value of stock option awards is estimated on the date of grant using a binomial option-pricing model that uses the assumptions noted in the following table:
Valuation Assumptions |  |  | 2014 |  |  |  | 2013 |  |  |  | 2012 |
Risk-free interest rate |  |  | 2.73 | % |  |  | 2.02 | % |  |  | 1.99 | %
Expected volatility |  |  | 72.0 | % |  |  | 75.3 | % |  |  | 78.8 | %
Expected dividend yield |  |  | 0.00 | % |  |  | 0.00 | % |  |  | 0.00 | %
Expected term |  |  | 5 yrs. |  |  |  | 5 yrs. |  |  |  | 5 yrs. |
Stock Option |
Class of Stock [Line Items] |
Summary of All Stock Option Activity | A summary of all stock option activity during 2014 is as follows:
|  |  |  |  |  |  | Weighted |  |  |  |
|  |  |  |  | Weighted |  | Average |  |  | Aggregate |
|  |  |  |  | Average |  | Remaining |  |  | Intrinsic |
|  | Number of |  | Exercise |  | Contractual |  |  | Value ($ in |
|  | Options |  | Price |  | Life |  |  | millions) |
Options Outstanding at December 31, 2013 |  |  | 1,999,688 |  | $ | 11.57 |  |  | 6.0 |  | $ | 4.4 |
Granted |  |  | 200,720 |  | $ | 13.32 |  |  |  |  |  |  |
Exercised |  |  | (195,383) |  | $ | 9.83 |  |  |  |  | $ | 0.7 |
Forfeited |  |  | (20,549) |  | $ | 10.46 |  |  |  |  |  |  |
Expired |  |  | (75,020) |  | $ | 22.70 |  |  |  |  |  |  |
Options Outstanding at December 31, 2014 |  |  | 1,909,456 |  | $ | 11.79 |  |  | 5.5 |  | $ | 3.3 |
Options Exercisable at December 31, 2014 |  |  | 1,360,693 |  | $ | 12.01 |  |  | 4.4 |  | $ | 2.5 |
Restricted Stock |
Class of Stock [Line Items] |
Summary of All Stock Option Activity | A summary of all restricted stock activity during 2014 is as follows:
|  |  |  |  | Weighted |
|  |  |  |  | Average |
|  | Number of |  | Grant Date |
|  | Shares |  | Fair Value |
Restricted Stock Outstanding at December 31, 2013 |  |  | 1,146,931 |  | $ | 10.06 |
Granted |  |  | 572,052 |  | $ | 13.84 |
Vested |  |  | (392,470) |  | $ | 10.19 |
Forfeited |  |  | (37,744) |  | $ | 10.07 |
Restricted Stock Outstanding at December 31, 2014 |  |  | 1,288,769 |  | $ | 11.70 |

X
- Details
Name: | us-gaap_ClassOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_OptionIndexedToIssuersEquityEquityAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |