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Equity (Tables) | 6 Months Ended
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Jun. 30, 2015
Equity [Abstract] |
Schedule of Nonvested Restricted Stock Units Activity | The following table summarizes the restricted share activity for the six months ended June 30, 2015 and status of all unvested restricted share awards to our non-employee board members and employees at June 30, 2015:
Non-vested Shares | Shares |  | Weighted-Average Grant-Date Fair Value
Balance at January 1, 2015 | 543,707 |  |  | $ | 26.43 |
Granted | 145,880 |  |  | 31.17 |
Vested | (51,933 | ) |  | 21.31 |
Canceled | (6,346 | ) |  | 22.33 |
Balance at June 30, 2015 | 631,308 |  |  | $ | 27.99 |
Six Months Ended June 30, |  | Non-Vested Shares Issued |  | Weighted Average Grant - Date Fair Value |  | Vested Shares |  | Total Vest-Date Fair Value (in thousands)
2015 |  | 145,880 |  |  | $ | 31.17 |  |  | (51,933 | ) |  | $ | 1,576 |
2014 |  | 281,491 |  |  | 29.38 |  |  | (275,051 | ) |  | 9,794 |

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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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