Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2018 |
Sep. 30, 2017 |
|
| Goodwill And Intangible Assets Details | ||
| Goodwill beginning | $ 76,593 | $ 18,590 |
| Acquisition of SNI Companies | 58,003 | |
| Goodwill ending | $ 76,593 | $ 76,593 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|