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Equity Incentive Plan (Details Textual) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Feb. 23, 2018
Mar. 31, 2018
Restricted Stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair Value Inputs Forfeiture Rate   0.00%
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized   $ 8.5
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition   3 years 8 months 12 days
Performance Shares [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition   4 years 10 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Description Equity compensation awarded February 23, 2018 for certain executive officers consisted of both performance shares and restricted stock. Performance shares are subject to a three-year performance period, at the conclusion of which, shares awarded are to be determined by the Companys total shareholder return compared to the MSCI US REIT Index and a defined peer group. Vesting of the performance shares following their issuance will occur ratably over a three-year period, with the initial vesting occurring immediately following the conclusion of the performance period such that all shares vest within five years of the original award date of February 23, 2018. The grant date fair value of these awards is determined using a Monte Carlo simulation pricing model and compensation expense is amortized on a straight-line basis over a five-year period. Compensation expense related to performance shares is determined at the grant date and is not adjusted throughout the measurement or vesting periods.  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options   $ 1.7
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate   0.00%
Share-based Compensation, Fair Value Assumptions, Forfeiture Rate   0.00%