XML 35 R37.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Land and Development (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Land And Development [Abstract] |
Schedule of land and land improvements | The Company's land and development assets were comprised of the following ($ in thousands):
| As of December 31,
| 2019 |  | 2018
Land and land development, at cost | $ | 590,153 |  |  | $ | 606,849 |
Less: accumulated depreciation | (9,608 | ) |  | (8,631 | )
Total land and development, net | $ | 580,545 |  |  | $ | 598,218 |

X
- Definition Land And Development [Abstract] + References No definition available. + Details
Name: | star_LandAndDevelopmentAbstract
Namespace Prefix: | star_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule Of Land And Land Improvements + References No definition available. + Details
Name: | star_ScheduleOfLandAndLandImprovementsTableTextBlock
Namespace Prefix: | star_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration