Recent Accounting Pronouncements - Additional Informaiton (Details) - USD ($) $ in Millions	Oct. 01, 2019	Sep. 30, 2019
New Accounting Pronouncement Early Adoption [Line Items]
Right-of-use asset and lease liability classified as deferred rent obligations and exit/disposal liabilities, and prepaid rent		$ 5.7
Accounting Standards Update 2016-02
New Accounting Pronouncement Early Adoption [Line Items]
Lease liability	$ 76.3
Right-of-use asset	$ 70.6