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Benefit Plans | 9 Months Ended
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Sep. 30, 2017
Share-based Compensation [Abstract] |
Benefit Plans | Benefit Plans Restricted Stock or Restricted Unit Awards For the nine months ended September 30, 2017, the Company awarded 252,213 shares of restricted stock awards to certain employees, which had an aggregate fair value of $6,631 on the date such awards were approved by the Compensation Committee of the Board of Directors. These restricted stock awards were granted based upon the achievement of certain corporate performance goals and generally vest over a period of three years. Additionally, during the nine months ended September 30, 2017, the Company awarded 15,108 shares of restricted stock to non-employee members of the Board of Directors, which had an aggregate fair value of $420 on the date of approval. These restricted stock awards vest over a one-year period. The Operating Partnership issued restricted Unit awards to the Company in the same amount for both restricted stock awards. Compensation expense is charged to earnings over the vesting periods for the restricted stock or restricted Unit awards expected to vest except if the recipient is not required to provide future service in exchange for vesting of such restricted stock or restricted Unit awards. If vesting of a recipient's restricted stock or restricted Unit awards is not contingent upon future service, the expense is recognized immediately at the date of grant. During both the nine months ended September 30, 2017 and 2016, we recognized $1,590 of compensation expense related to restricted stock or restricted Unit awards granted to our former Chief Executive Officer for which future service was not required. LTIP Unit Awards For the nine months ended September 30, 2017, the Company granted to certain employees 195,951 Long-Term Incentive Program ("LTIP") performance units ("LTIP Unit Awards"), which had a fair value of $2,473 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 the Company's common stock compared to the TSRs of the MSCI US REIT Index and the NAREIT Industrial Index over a performance period of three years. Compensation expense is charged to earnings on a straight-line basis over the performance period. At the end of the performance period each participant will be issued shares of the Company's 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 the Company's TSR as compared to the TSRs of the MSCI US REIT Index and the NAREIT Industrial Index. The Operating Partnership issues General Partner Units to the Company in the same amounts for vested LTIP Unit Awards. Outstanding Restricted Stock or Restricted Unit Awards and LTIP Unit Awards We recognized $1,844 and $1,428 for the three months ended September 30, 2017 and 2016, respectively and $6,767 and $5,898 for the nine months ended September 30, 2017 and 2016 respectively, in amortization related to restricted stock or restricted Unit awards and LTIP Unit Awards. Restricted stock or restricted Unit award and LTIP Unit Award amortization capitalized in connection with development activities was not significant. At September 30, 2017, we had $9,629 in unrecognized compensation related to unvested restricted stock or restricted Unit awards and LTIP Unit Awards. The weighted average period that the unrecognized compensation is expected to be recognized is 0.94 years.

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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 -URI http://asc.fasb.org/topic&trid=2228938 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -URI http://asc.fasb.org/subtopic&trid=2208855 + Details
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