Annual report pursuant to Section 13 and 15(d)

Business combinations and disposals - Schedule of Finite-Lived Intangible Assets (Details)

v3.20.2
Business combinations and disposals - Schedule of Finite-Lived Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Components of intangible assets    
Cost $ 245,397 $ 260,551
Accumulated Amortization 99,504 81,301
Intangible Assets, net 145,893 179,250
Customer contracts and relationships    
Components of intangible assets    
Cost 235,287 250,455
Accumulated Amortization 90,302 72,430
Intangible Assets, net 144,985 178,025
Technology-based intangible assets    
Components of intangible assets    
Cost 5,631 5,613
Accumulated Amortization 4,723 4,405
Intangible Assets, net 908 1,208
Trademarks and trade names    
Components of intangible assets    
Cost 4,479 4,483
Accumulated Amortization 4,479 4,466
Intangible Assets, net $ 0 $ 17
Weighted Average    
Components of intangible assets    
Weighted average remaining life of assets not fully amortized 9 years  
Weighted Average | Customer contracts and relationships    
Components of intangible assets    
Weighted average remaining life of assets not fully amortized 9 years  
Weighted Average | Technology-based intangible assets    
Components of intangible assets    
Weighted average remaining life of assets not fully amortized 3 years 1 month 6 days