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Share-based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2013
Share-Based Compensation [Abstract] |
Restricted Stock Activity |
The Company has issued restricted stock to employees and nonemployee directors generally with terms up to five years. The fair value is equal to the market price of the Company’s common stock on the date of grant. Expense for restricted stock is amortized ratably over the vesting period. The following table summarizes the restricted stock activity:
|  | Shares |  | Weighed-Average Grant Date Fair Value |
Unvested at December 31, 2012 |  |  | 149,667 |  | $ | 8.21 |
Granted |  |  | 311,761 |  |  | 25.21 |
Vested |  |  | (113,106) |  |  | 12.16 |
Forfeited |  |  | - |  |  | - |
Unvested at June 30, 2013 |  |  | 348,322 |  | $ | 22.14 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + 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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