| **Long-Term Debt**             | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
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| **Debt Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| Long-Term Debt                 | LONG-TERM DEBTLong-term debt at November 30, 2014 and 2013 consisted of the following:   2014 2013Credit Facility:    Multicurrency Revolving Credit Facility$— $50,000 Multicurrency Term Loan Facility395,000 100,000Industrial Revenue Bonds, at weighted average interest rates of 0.22% and 0.23%, respectively, at November 30, 2014 and 201315,820 15,820Other long-term debt743 816  Total long-term debt$411,563 $166,636     Current portion of long-term debt$233 $50,223Long-term debt, less current portion$411,330 $116,413On April 5, 2012, the Company entered into a five-year multicurrency revolving credit agreement which included a revolving credit facility (the “Credit Facility”) with a group of financial institutions.  Under the Credit Facility, the Company may borrow up to $150,000 which includes a $10,000 swing line sub-facility, as well as an accordion feature that allows the Company to increase the Credit Facility by a total of up to $100,000, subject to securing additional commitments from existing lenders or new lending institutions.  On November 22, 2013, the Company entered into a credit agreement amendment to include a $100,000 term loan facility (the "Term Loan Facility") and on May 1, 2014, the Company entered into a second credit agreement amendment to include an additional $315,000 to the Term Loan Facility, whose maturity date will be the same as the maturity date of the Credit Facility.  At the Company's election, loans made under the Credit Facility and Term Loan Facility bear interest at either (1) a defined base rate, which varies with the highest of the defined prime rate, the federal funds rate, or a specified margin over the one-month London Interbank Offered Rate (“LIBOR”), or (2) LIBOR plus an applicable margin.  Swing line loans bear interest at the defined base rate plus an applicable margin.  Commitment fees and letter of credit fees are also payable under the Credit Facility.  Borrowings under the Credit Facility and Term Loan Facility are unsecured, but are guaranteed by substantially all of the Company's material domestic subsidiaries.  The credit agreement also contains certain covenants customary to such agreements, including covenants that place limits on our ability to incur additional debt, require us to maintain minimum levels of interest coverage, and restrict certain changes in ownership, as well as customary events of default.  At November 30, 2014, there was $395,000 outstanding on the Term Loan Facility with a weighted average interest rate of approximately 1.05%, there was $0 outstanding on the Credit Facility, and the Company had a remaining borrowing capacity of $133,988.  The Credit Facility includes a $50,000 letter of credit sub-facility, against which $16,012 in letters of credit had been issued at both November 30, 2014 and 2013.As of  November 30, 2014 and 2013, industrial revenue bonds issued by the Company include $7,410 issued in cooperation with the Campbellsville-Taylor County Industrial Development Authority (Kentucky) due May 1, 2031 and $8,410 re-issued in cooperation with the South Dakota Economic Development Finance Authority due February 1, 2016.  The interest rates on these bonds are reset weekly.Principal maturities of long-term debt as of November 30, 2014 and for the next five fiscal years ending November 30 are as follows:2015$23320168,6592017395,12720184220197Thereafter7,495 $411,563 |

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| - Definition
The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682
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