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Borrowings - Convertible Debentures - Additional Information (Details) - Convergys - 5.75% Junior Subordinated Convertible Debentures due September 2029 - USD ($)
$ in Thousands
6 Months Ended
Oct. 05, 2018
May 31, 2019
Debt Instrument [Line Items]    
Aggregate principal amount of debentures $ 124,963 $ 69,258
Debenture interest rate percentage 5.75%  
Debt Instrument, Maturity date 2029-09  
Principal amount of convertible debentures settled   $ 148,023