Stock-Based Compensation Time-based vesting (Details) - shares |
1 Months Ended | 3 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 05, 2019 |
Apr. 15, 2019 |
Mar. 31, 2019 |
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| LTIP units outstanding as of March 31, 2019 | 774,000 | |||||||||||
| Long Tem Incentives Plan Units [Member] | ||||||||||||
| LTIP units granted | 28 | 3 | ||||||||||
| Long Tem Incentives Plan Units [Member] | 2017 Program [Member] | ||||||||||||
| LTIP units granted | [1] | 28,000 | ||||||||||
| Long Tem Incentives Plan Units [Member] | Equity Incentive Plan 2016 [Member] | ||||||||||||
| LTIP units outstanding as of December 31, 2018 | 588,000 | |||||||||||
| LTIP units granted | [2] | 108,000 | ||||||||||
| LTIP units redeemed in cash or forfeited | [3] | (4,000) | ||||||||||
| LTIP units outstanding as of March 31, 2019 | 774,000 | |||||||||||
| Long Tem Incentives Plan Units [Member] | 2018 Time based [Membe] | ||||||||||||
| LTIP units granted | [4] | 54,000 | ||||||||||
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