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Stock Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2013
Share-based Compensation [Abstract] |
Schedule of Share-based Payment Award: Valuation Assumptions | As mentioned above, the fair value of the LTIP Unit Awards at issuance was determined by a lattice-binomial option-pricing model based on a Monte Carlo simulation using the following assumptions:
Expected dividend yield | 2.22 | %
Expected volatility - range used | 24.28% - 34.66% |
Expected volatility - weighted average | 30.61 | %
Risk-free interest rate | 0.03% - 0.71% |
Expected term | 1 - 2.5 years |
Summary of Restricted Stock Award and Restricted Stock Unit Award Transactions | Restricted stock and unit award and LTIP Unit Award transactions for the year ended December 31, 2013 are summarized as follows:
| Awards |  | Weighted Average Grant Date Fair Value
Outstanding at December 31, 2012 (Restricted Stock and Unit) | 772,127 |  |  | $ | 7.02 |
Issued (Restricted Stock and Unit and LTIP Unit Award) | 1,003,421 |  |  | $ | 10.10 |
Forfeited (Restricted Stock and Unit) | (201,719 | ) |  | $ | 4.58 |
Vested (Restricted Stock and Unit) | (292,608 | ) |  | $ | 7.41 |
Outstanding at December 31, 2013 (Restricted Stock and Unit and LTIP Unit Award) | 1,281,221 |  |  | $ | 9.72 |

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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- 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
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