Stockholders' Equity - Dividends Declared (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
May 31, 2020	Feb. 29, 2020	Nov. 30, 2019	May 31, 2019	Feb. 28, 2019	Nov. 30, 2018
Equity [Abstract]
Dividends per Share of Common Stock (in USD per share)	$ 0.77	$ 0.72	$ 0.72	$ 0.72	$ 0.64	$ 0.64
Total $ Amount	$ 29,188	$ 27,251	$ 27,291	$ 27,506	$ 24,385	$ 24,372

Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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