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Retirement Plan	12 Months Ended
	Nov. 30, 2017
Retirement Benefits [Abstract]
Retirement Plan	Retirement Plan We maintain a retirement plan covering all U.S. employees under Section 401(k) of the Internal Revenue Code. Company contributions to the plan are at the discretion of the Board of Directors and totaled approximately $2.1 million, $2.5 million and $2.4 million for fiscal years 2017, 2016 and 2015, respectively.

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- References

No definition available.

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- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

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