Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Long-Term Awards (Details)

v3.19.2
Stock-Based Compensation - Long-Term Awards (Details)
6 Months Ended
Jun. 30, 2019
shares
Net annual and long-term LTIP awards as of March 31, 2019 (at target) 421
Total Annual Long term Awards [Member]  
Net annual and long-term LTIP awards as of December 31, 2018 (at target) 367
2017 Program [Member] | Long-Term Awards [Member]  
Net annual and long-term LTIP awards as of December 31, 2018 (at target) 96
Net annual and long-term LTIP awards as of March 31, 2019 (at target) 96
2018 Program [Member] | Total Annual Long term Awards [Member]  
LTIP Units earned and granted under the 2018 Performance Program - Annual Awards (108) [1],[2]
LTIP unit forfeitures (25) [3]
2018 Program [Member] | Annual Awards [Member]  
Net annual and long-term LTIP awards as of December 31, 2018 (at target) 161
LTIP Units earned and granted under the 2018 Performance Program - Annual Awards (108) [1]
LTIP unit forfeitures (25) [3]
2018 Program [Member] | Long-Term Awards [Member]  
Net annual and long-term LTIP awards as of December 31, 2018 (at target) 110
Net annual and long-term LTIP awards as of March 31, 2019 (at target) 110
2018 Program [Member] | Discretionary [Member] | Total Annual Long term Awards [Member]  
LTIP Units earned and granted under the 2018 Performance Program - Annual Awards (28) [1]
2018 Program [Member] | Discretionary [Member] | Annual Awards [Member]  
LTIP Units earned and granted under the 2018 Performance Program - Annual Awards (28) [1]
2019 Program [Member] | Total Annual Long term Awards [Member]  
LTIP Unit target grants via the 2019 Performance Program 215 [2]
2019 Program [Member] | Annual Awards [Member]  
LTIP Unit target grants via the 2019 Performance Program 133 [2]
Net annual and long-term LTIP awards as of March 31, 2019 (at target) 133
2019 Program [Member] | Long-Term Awards [Member]  
LTIP Unit target grants via the 2019 Performance Program 82 [2]
Net annual and long-term LTIP awards as of March 31, 2019 (at target) 82
[1] These amounts represent grants from the 2018 program Annual Awards. Refer to the “Time-Based Grants” table above which presents these grants as earned and time-based.
[2] These target Annual Awards and Long-Term Awards were approved by the Board on March 5, 2019.
[3] On March 5, 2019 the Compensation Committee determined the extent to which the Company achieved the performance goals and concluded that these target awards were not achieved.