Derivative Instruments (Schedule of Derivatives) (Details) - USD ($) $ in Thousands	Aug. 31, 2020	Nov. 30, 2019
Derivative [Line Items]
Notional Value	$ 70,358	$ 68,408
Fair Value	1,915	(80)
Interest rate swap contracts designated as cash flow hedges
Derivative [Line Items]
Notional Value	144,375	148,125
Fair Value	(7,462)	(2,054)
Forward contracts to sell U.S. dollars
Derivative [Line Items]
Notional Value	70,358	66,951
Fair Value	1,915	(85)
Forward contracts to purchase U.S. dollars
Derivative [Line Items]
Notional Value	0	1,457
Fair Value	$ 0	$ 5

Nominal or face amount used to calculate payments on the derivative asset.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant