Operating Leases Future Minimum Payments Due, Net [Abstract]

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Operating Leases, Future Minimum Payments Due, Net of Sublease Income

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Operating Leases, Future Minimum Payments Due, Net of Sublease Income, In Five Years

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Operating Leases, Future Minimum Payments Due, Net of Sublease Income, In Four Years

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Operating Leases, Future Minimum Payments Due, Net of Sublease Income, In Three Years

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Operating Leases, Future Minimum Payments Due, Net of Sublease Income, In Two Years

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Operating Leases, Future Minimum Payments Due, Net of Sublease Income, Next Twelve Months

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Operating Leases, Future Minimum Payments Due, Net of Sublease Income, Thereafter

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
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-Section 55
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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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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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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 fourth 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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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 third 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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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 second 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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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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Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

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Future rental payments receivable within one year of the balance sheet date under an operating lease.

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Future rental payments receivable within the fifth year from the balance sheet date under an operating lease.

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Future rental payments receivable within the fourth year from the balance sheet date under an operating lease.

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Future rental payments receivable within the third year from the balance sheet date under an operating lease.

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Future rental payments receivable within the second year from the balance sheet date under an operating lease.

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Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date.

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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LEASES - Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Related Party Transaction [Line Items]
2020	$ 4,808
2021	4,038
2022	2,485
2023	2,092
2024	2,011
Thereafter	5,734
Total	21,168
Rental expense	19,300	$ 10,700	$ 9,500
Minimum future rental payments - leases
2020	32,504
2021	30,376
2022	30,651
2023	30,473
2024	30,602
Thereafter	715,910
Total	870,516
Minimum future sublease income
2020	(4,808)
2021	(4,038)
2022	(2,485)
2023	(2,092)
2024	(2,011)
Thereafter	(5,734)
Total	(21,168)
Total
2020	30,795
2021	28,948
2022	29,537
2023	29,486
2024	29,577
Thereafter	715,067
Total	863,410
Subleases
Related Party Transaction [Line Items]
2020	1,709
2021	1,428
2022	1,114
2023	987
2024	1,025
Thereafter	843
Total	7,106
Rental expense	8,600	$ 8,800	$ 8,800
Minimum future sublease income
2020	(1,709)
2021	(1,428)
2022	(1,114)
2023	(987)
2024	(1,025)
Thereafter	(843)
Total	(7,106)
Project Inspire
Related Party Transaction [Line Items]
Rental expense	$ 1,800