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Fair Value Measurements - Schedule of Valuation of Investments and Financial Instruments Measured at Fair Value on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($)
$ in Thousands
May 31, 2019
Nov. 30, 2018
Assets:    
Cash equivalents $ 43,515 $ 108,785
Marketable equity securities 2,536 5,492
Foreign government bond 1,145 1,104
Forward foreign currency exchange contracts 12,556 16,485
Interest Rate Derivative Assets, at Fair Value 1,342 9,388
Liabilities:    
Contingent consideration payable 13,966 33,098
Forward foreign currency exchange contracts 5,334 14,162
Interest Rate Derivative Liabilities, at Fair Value 70,979 9,004
Convertible debentures conversion option 32 77,238
Level 1    
Assets:    
Cash equivalents 43,515 108,785
Marketable equity securities 2,536 5,492
Foreign government bond 1,145 1,104
Forward foreign currency exchange contracts 0 0
Interest Rate Derivative Assets, at Fair Value 0 0
Liabilities:    
Contingent consideration payable 0 0
Forward foreign currency exchange contracts 0 0
Interest Rate Derivative Liabilities, at Fair Value 0 0
Convertible debentures conversion option 0 0
Level 2    
Assets:    
Cash equivalents 0 0
Marketable equity securities 0 0
Foreign government bond 0 0
Forward foreign currency exchange contracts 12,556 16,485
Interest Rate Derivative Assets, at Fair Value 1,342 9,388
Liabilities:    
Contingent consideration payable 0 0
Forward foreign currency exchange contracts 5,334 14,162
Interest Rate Derivative Liabilities, at Fair Value 70,979 9,004
Convertible debentures conversion option 0 0
Level 3    
Assets:    
Cash equivalents 0 0
Marketable equity securities 0 0
Foreign government bond 0 0
Forward foreign currency exchange contracts 0 0
Interest Rate Derivative Assets, at Fair Value 0 0
Liabilities:    
Contingent consideration payable 13,966 33,098
Forward foreign currency exchange contracts 0 0
Interest Rate Derivative Liabilities, at Fair Value 0 0
Convertible debentures conversion option $ 32 $ 77,238