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Debt Adoption of ASC842 (Details) - USD ($)
Nov. 30, 2019
Jun. 02, 2019
Jun. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Retained earnings $ 826,700,000   $ 712,700,000
Accounting Standards Update 2016-02      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Retained earnings   $ 0