Stockholders' Equity and Partners' Capital - Summary of Dividends Declared (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 6 Months Ended | |||||
|---|---|---|---|---|---|---|---|
May 31, 2018 |
May 29, 2018 |
Mar. 05, 2018 |
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
|
| Equity [Abstract] | |||||||
| Preferred stock, dividend per share (in dollars per share) | $ 0.375 | $ 0.375 | |||||
| Preferred stock, total amount | $ 2,588 | $ 2,588 | $ 5,176 | ||||
| Common stock, dividend per share (in dollars per share) | $ 0.18000 | $ 0.18000 | $ 0.18 | $ 0.18 | $ 0.36 | $ 0.36 | |
| Common stock, total amount | $ 77,143 | $ 78,581 | $ 155,724 | ||||