Commitments and Contingencies (Tables)

12 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Annual Rental Commitments Under Leases

At September 30, 2017, the future minimum annual rental commitments and expected receipts under non-cancelable operating leases having terms in excess of one year were as follows (in thousands):

Years Ended September 30,	Operating Leases Payments		Operating Sublease Income
2018	$	3,420	$	(1,530	)
2019	2,973		(1,292		)
2020	1,937		(39		)
2021	1,767		—
2022	1,743		—
Thereafter	1,172		—
Total lease commitments	$	13,012	$	(2,861	)

Schedule of Lease Expense and Sublease Income

Lease expense and sublease income from third parties was as follows (in thousands):

	Year Ended September 30,
	2017			2016			2015
Rental expense	$	3,734		$	4,469		$	4,907
Sublease income from third parties	(1,389		)	(986		)	(947		)