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Operating Leases (Tables)
12 Months Ended
Sep. 30, 2017
Leases [Abstract]  
Schedule of future minimum rental payments for operating leases
As of September 30, 2017, future minimum lease payments under noncancelable operating lease agreements are as follows:
Fiscal Year Ended September 30,
(In thousands)
 
2018
$
4,124

2019
4,001

2020
3,161

2021
2,518

2022
1,588

Thereafter
831

Total
$
16,223