Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 1,963,380	$ 2,368,344	$ 1,905,513
Other comprehensive (loss) income before reclassifications	(26,734)	2,055
Amounts reclassified from AOCI	14,185	(5,191)
Total other comprehensive loss	(12,549)	(3,136)
Ending Balance	1,905,513	2,344,692
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	7,431	57,582	7,808
Other comprehensive (loss) income before reclassifications	377	(3,801)
Amounts reclassified from AOCI	0	0
Total other comprehensive loss	377	(3,801)
Ending Balance	7,808	53,781
Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	8,116	29,967	3,832
Other comprehensive (loss) income before reclassifications	(18,469)	7,744
Amounts reclassified from AOCI	14,185	(5,191)
Total other comprehensive loss	(4,284)	2,553
Ending Balance	3,832	32,520
Actuarial (Loss) Gain
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(25,021)	(33,215)	(24,918)
Other comprehensive (loss) income before reclassifications	103	(423)
Amounts reclassified from AOCI	0	0
Total other comprehensive loss	103	(423)
Ending Balance	(24,918)	(33,638)
Prior Service Cost
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(643)	889	(643)
Other comprehensive (loss) income before reclassifications	0	0
Amounts reclassified from AOCI	0	0
Total other comprehensive loss	0	0
Ending Balance	(643)	889
Available for Sale Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(9,282)	(603)	(18,027)
Other comprehensive (loss) income before reclassifications	(8,745)	(1,465)
Amounts reclassified from AOCI	0	0
Total other comprehensive loss	(8,745)	(1,465)
Ending Balance	(18,027)	(2,068)
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(19,399)	54,620	(31,948)
Ending Balance	$ (31,948)	51,484
Income Tax Expense | Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI		$ (3,500)
Scenario, Forecast | Income Tax Expense | Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from AOCI			$ 9,200