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Stock Based Compensation | 12 Months Ended
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Dec. 31, 2013
Share-based Compensation [Abstract] |
Stock Based Compensation | 14. Stock Based Compensation We maintain five stock incentive plans, (the "Stock Incentive Plans") which are administered by the Compensation Committee of the Board of Directors. There are 11,500,000 shares authorized for issuance under the Stock Incentive Plans. Only officers, certain employees, our Independent Directors and our affiliates generally are eligible to participate in the Stock Incentive Plans. The Stock Incentive Plans authorize (i) the grant of stock options that qualify as incentive stock options under Section 422 of the Code, (ii) the grant of stock options that do not so qualify, (iii) restricted stock/unit awards (including awards subject to performance conditions), and (iv) dividend equivalent rights. The exercise price of the stock options is determined by the Compensation Committee. Special provisions apply to awards granted under the Stock Incentive Plans in the event of a change in control in the Company. As of December 31, 2013, awards covering 373,243 shares of common stock were available to be granted under the Stock Incentive Plans. In September 1994, the Board of Directors approved and we adopted a 401(k)/Profit Sharing Plan. Under our 401(k)/Profit Sharing Plan, all eligible employees may participate by making voluntary contributions. We may make, but are not required to make, matching contributions. For the years ended December 31, 2013, 2012 and 2011, matching contributions of $300, $284 and $197, respectively, were recorded. For the years ended December 31, 2013, 2012 and 2011, we awarded 284,461, 565,137 and 292,339 shares, respectively, of restricted stock awards to certain employees, which had a fair value of $4,719, $7,065 and $3,248 on the date of approval by the Compensation Committee of the Board of Directors and/or the Board of Directors. These restricted stock awards generally vest over a period of three years. Compensation expense will be charged to earnings over the vesting period for the shares expected to vest except if the recipient is not required to provide future service in exchange for vesting of the share. If vesting of a recipient's restricted stock awards is not contingent upon future service, the expense is recognized immediately at the date of grant. During the years ended December 31, 2013 and 2012, we recognized $1,008 and $3,649 of compensation expense related to restricted stock awards granted to our Chief Executive Officer for which future service was not required. The Board of Directors adopted the 2013 Long-Term Incentive Program ("LTIP") and effective July 1, 2013, certain officers and employees were granted 718,960 performance units ("LTIP Unit Awards"). The LTIP Unit Awards had a fair value of $5,411 on the grant date as determined by a lattice-binomial option-pricing model based on a Monte Carlo simulation. The LTIP Unit Awards vest based upon the relative total shareholder return ("TSR") of our common stock compared to the TSRs of the MSCI US REIT Index and the NAREIT Industrial Index. The TSR for half of the granted units is calculated based upon the performance from July 1, 2013 through June 30, 2014 and the other half is calculated based upon the performance from July 1, 2013 through December 31, 2015. Compensation expense will be charged to earnings on a straight-line basis over the respective performance periods. At the end of the respective performance periods, each participant will be issued shares of our common stock equal to the maximum shares issuable to the participant for the performance period multiplied by a percentage, ranging from 0% to 100% , based on our TSR as compared to the TSR of the MSCI US REIT Index and the NAREIT Industrial Index. The participants will also be entitled to dividend equivalents for shares issued pursuant to vested LTIP Unit Awards, of which dividend equivalents represent any common dividends that would have been paid with respect to such issued shares after the grant of the LTIP Unit Awards and prior to the date of settlement. 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 |
For the years ended December 31, 2013, 2012 and 2011, we recognized $6,202, $8,559 and $3,759 in amortization related to restricted stock and unit awards and LTIP Unit Awards, of which $43, $32 and $0, respectively, was capitalized in connection with development activities. At December 31, 2013, we had $7,319 in unrecognized compensation related to unvested restricted stock and LTIP Unit Awards. The weighted average period that the unrecognized compensation is expected to be recognized is 0.83 years. 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 The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 + Details
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