Legal Matters (Details) (Nevada Development Contract Litigation, USD $) In Millions, unless otherwise specified	3 Months Ended
Feb. 28, 2015 acre
Nevada Development Contract Litigation
Loss Contingencies [Line Items]
Acres of purchased land by LVDA	83
Expected compensatory damages	$ 55
Expected interest charges	$ 41

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

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-Section 50

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-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

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-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

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