Stock Based Compensation	3 Months Ended
Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Based Compensation	Stock Based Compensation We account for share-based awards in accordance with ASC Topic 718, Compensation-Stock Compensation, which requires the fair value of stock-based compensation awards to be amortized as an expense over the vesting period. Stock-based compensation awards are valued at the fair value on the date of grant. Compensation expense for awards with performance based conditions is recognized over the vesting period once achievement of the performance condition is deemed probable. During the three months ended March 31, 2018, the Company granted 237,281 shares of time-based restricted stock and 426,075 shares of performance based restricted stock. On the Consolidated Balance Sheets and Statement of Equity, the Company considers unvested shares of restricted stock to be issued, but not outstanding. The Company recorded total stock based compensation expense during the three months ended March 31, 2018 and 2017 of $3.2 million and $1.7 million, respectively. Performance-Based Restricted Stock Awards With respect to the performance based restricted stock awards granted to certain employees during the three months ended March 31, 2018, the actual number of such shares of restricted stock that will be earned (the “Earned Shares”) is subject to the Company’s achievement of pre-established performance targets as of the end of the 2018 fiscal year. Of the aforementioned awards, 373,432 of such Earned Shares vest in three equal annual installments on March 1st of each of 2019, 2020 and 2021, subject to each grantee’s continued service through each vesting date. The remaining 52,643 of such Earned Shares vest in three equal annual installments on each anniversary of the grant date, subject to each grantee’s continued service through each vesting date. Based on the probability assessment as of March 31, 2018, management determined that the currently available data was not sufficient to support that the achievement of the performance targets is probable, and as such, no compensation expense has been recognized for these awards to date. Time-Based Restricted Stock Awards With respect to the restricted stock awards granted to certain employees and non-employee directors during the three months ended March 31, 2018, 116,484 of such shares vest in three equal annual installments on March 1st of each of 2019, 2020 and 2021, 4,767 of such shares vest in two equal annual installments on March 1st of each of 2019 and 2020, 26,321 of such shares vest in three equal annual installments on each anniversary of the grant date, 31,464 of such shares vest in two equal annual installments on each anniversary of the grant date, and 36,317 of such shares vest in one installment on the second anniversary of the grant date, in each case subject to each grantee’s continued service through each vesting date, and 21,928 of such shares vest in four equal quarterly installments on each three-month period beginning June 1st of 2018, subject to each grantee’s continued service on the board through each vesting date.

Stock Based Compensation

We account for share-based awards in accordance with ASC Topic 718, Compensation-Stock Compensation, which requires the fair value of stock-based compensation awards to be amortized as an expense over the vesting period. Stock-based compensation awards are valued at the fair value on the date of grant. Compensation expense for awards with performance based conditions is recognized over the vesting period once achievement of the performance condition is deemed probable.

During the three months ended March 31, 2018, the Company granted 237,281 shares of time-based restricted stock and 426,075 shares of performance based restricted stock. On the Consolidated Balance Sheets and Statement of Equity, the Company considers unvested shares of restricted stock to be issued, but not outstanding.

The Company recorded total stock based compensation expense during the three months ended March 31, 2018 and 2017 of $3.2 million and $1.7 million, respectively.

Performance-Based Restricted Stock Awards

With respect to the performance based restricted stock awards granted to certain employees during the three months ended March 31, 2018, the actual number of such shares of restricted stock that will be earned (the “Earned Shares”) is subject to the Company’s achievement of pre-established performance targets as of the end of the 2018 fiscal year. Of the aforementioned awards, 373,432 of such Earned Shares vest in three equal annual installments on March 1st of each of 2019, 2020 and 2021, subject to each grantee’s continued service through each vesting date. The remaining 52,643 of such Earned Shares vest in three equal annual installments on each anniversary of the grant date, subject to each grantee’s continued service through each vesting date. Based on the probability assessment as of March 31, 2018, management determined that the currently available data was not sufficient to support that the achievement of the performance targets is probable, and as such, no compensation expense has been recognized for these awards to date.

Time-Based Restricted Stock Awards

With respect to the restricted stock awards granted to certain employees and non-employee directors during the three months ended March 31, 2018, 116,484 of such shares vest in three equal annual installments on March 1st of each of 2019, 2020 and 2021, 4,767 of such shares vest in two equal annual installments on March 1st of each of 2019 and 2020, 26,321 of such shares vest in three equal annual installments on each anniversary of the grant date, 31,464 of such shares vest in two equal annual installments on each anniversary of the grant date, and 36,317 of such shares vest in one installment on the second anniversary of the grant date, in each case subject to each grantee’s continued service through each vesting date, and 21,928 of such shares vest in four equal quarterly installments on each three-month period beginning June 1st of 2018, subject to each grantee’s continued service on the board through each vesting date.