Accounting Pronouncements (Details) - USD ($) $ in Thousands	Oct. 31, 2019	Aug. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets	$ 46,718
Operating lease liability	$ 48,228
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets		$ 35,842
Operating lease liability		$ 36,417