Recent Accounting Pronouncements - Additional Informaiton (Details) - USD ($) $ in Millions	12 Months Ended
Sep. 30, 2019	Oct. 01, 2019
Subsequent Event
New Accounting Pronouncement Early Adoption [Line Items]
Right-of-use assets		$ 70.0
Lease liabilities		$ 80.0
Accounting Standards Update 2014-09
New Accounting Pronouncement Early Adoption [Line Items]
Cumulative effect on retained earnings	$ (1.1)

Amount of the cumulative effect on retained earnings net of related income tax effect.

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-Topic 250
-SubTopic 10
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Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
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Amount of lessee's right to use underlying asset under operating lease.

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