Commitments and Contingencies - Schedule of Future Minimum Annual Rental Commitments Under Leases (Details) $ in Thousands	Sep. 30, 2017 USD ($)
Operating Leases Payments
2018	$ 3,420
2019	2,973
2020	1,937
2021	1,767
2022	1,743
Thereafter	1,172
Total lease commitments	13,012
Operating Sublease Income
2018	(1,530)
2019	(1,292)
2020	(39)
2021	0
2022	0
Thereafter	0
Total lease commitments	$ (2,861)

Operating Leases, Rent Expense, Sublease Rentals, Future Minimum Payments, Due In Five Years

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Operating Leases, Rent Expense, Sublease Rentals, Future Minimum Payments, Due In Four Years

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Operating Leases, Rent Expense, Sublease Rentals, Future Minimum Payments, Due In Three Years

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Operating Leases, Rent Expense, Sublease Rentals, Future Minimum Payments, Due In Two Years

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Operating Leases, Rent Expense, Sublease Rentals, Future Minimum Payments, Due Next Twelve Months

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Operating Leases, Rent Expense, Sublease Rentals, Future Minimum Payments, Due Thereafter

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Operating Leases, Sublease Future Minimum Payments Due, Rolling Maturity [Abstract] [Abstract]

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 55
-Paragraph 40
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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Contractually required future rental payments receivable on noncancelable subleasing arrangements.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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