Annual report pursuant to Section 13 and 15(d)

Business combinations and disposal Revitalised (Details)

v3.10.0.1
Business combinations and disposal Revitalised (Details) - USD ($)
$ in Thousands
Jul. 18, 2017
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2016
Business Acquisition [Line Items]        
Goodwill   $ 399,882 $ 402,976 $ 397,558
Revitalised        
Business Acquisition [Line Items]        
Share capital acquired (as a percent) 100.00%      
Cash consideration $ 2,700      
Contingent consideration arrangements, range of outcomes, value, high 1,400      
Goodwill 2,800      
Intangible assets $ 1,300