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Commitments and Contingencies (Tables)
12 Months Ended
Sep. 30, 2018
Commitments And Contingencies Disclosure [Abstract]  
Summary of Future Minimum Lease Payments Under Non-cancelable Operating Leases

Future minimum lease payments under non-cancelable operating leases as of September 30, 2018, were as follows:

 

 

(Amounts

in thousands)

 

2019

 

7,296

 

2020

 

7,077

 

2021

 

6,077

 

2022

 

4,961

 

2023

 

4,835

 

Thereafter

 

25,361

 

Total

$

55,607