Long-Term Debt - Additional Information (Detail) (USD $) | 3 Months Ended | 6 Months Ended | |
31-May-14 | 31-May-13 | 31-May-14 | 31-May-13 | Nov. 30, 2013 |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Long-term debt | $274,166,000 | ' | $274,166,000 | ' | $274,487,000 |
Stockholders' Equity Attributable to Parent | 1,318,388,000 | ' | 1,318,388,000 | ' | 1,287,155,000 |
Interest expense | 2,703,000 | 3,879,000 | 5,836,000 | 7,841,000 | ' |
Financing costs deferred | 4,100,000 | ' | 4,100,000 | ' | 4,400,000 |
4.63 percent Senior Notes | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Proceeds from long-term debt | ' | ' | 65,000,000 | ' | ' |
Debt, interest rate | 4.63% | ' | 4.63% | ' | 4.63% |
Frequency of periodic payment | ' | ' | 'semi-annual | ' | ' |
Debt Instrument, Covenant, Leverage Ratio, Maximum | 3.5 | ' | 3.5 | ' | ' |
Debt Instrument, Covenant, Interest Coverage Ratio, Maximum | 2 | ' | 2 | ' | ' |
Debt Instrument, Covenant Consolidated Net Worth, Percentage, Maximum | 15.00% | ' | 15.00% | ' | ' |
Long-term debt | 65,000,000 | ' | 65,000,000 | ' | 65,000,000 |
4.63 percent Senior Notes | Semi Annual Payment, First Payment | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt Instrument Interest Rate Payment Date | ' | ' | 'January 18 | ' | ' |
4.63 percent Senior Notes | Semi Annual Payment, Second Payment | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt Instrument Interest Rate Payment Date | ' | ' | 'JulyB 18 | ' | ' |
3.95 percent Senior Notes | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Proceeds from long-term debt | ' | ' | 100,000,000 | ' | ' |
Debt, interest rate | 3.95% | ' | 3.95% | ' | 3.95% |
Frequency of periodic payment | ' | ' | 'semi-annual | ' | ' |
Debt Instrument, Covenant, Leverage Ratio, Maximum | 3.5 | ' | 3.5 | ' | ' |
Debt Instrument, Covenant Consolidated Net Worth, Percentage, Maximum | 15.00% | ' | 15.00% | ' | ' |
Long-term debt | 100,000,000 | ' | 100,000,000 | ' | 100,000,000 |
3.95 percent Senior Notes | Semi Annual Payment, First Payment | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt Instrument Interest Rate Payment Date | ' | ' | 'March 13 | ' | ' |
3.95 percent Senior Notes | Semi Annual Payment, Second Payment | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt Instrument Interest Rate Payment Date | ' | ' | 'September 13 | ' | ' |
4.82 percent Revenue Bonds | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt, interest rate | 4.82% | ' | 4.82% | ' | 4.82% |
Long-term debt | 502,000 | ' | 502,000 | ' | 662,000 |
Debt, monthly payment | ' | ' | 29,000 | ' | ' |
6.25 percent Term Loan | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt, interest rate | 6.25% | ' | 6.25% | ' | 6.25% |
Long-term debt | 49,754,000 | ' | 49,754,000 | ' | 49,948,000 |
Debt, monthly payment | ' | ' | 292,000 | ' | ' |
Debt term | 25 | ' | 25 | ' | ' |
TIF bond debt service funding commitment | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Long-term debt | 58,910,000 | ' | 58,910,000 | ' | 58,877,000 |
Principal payment date | ' | ' | 'OctoberB 1 | ' | ' |
TIF bond debt service funding commitment | Semi Annual Payment, First Payment | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt Instrument Interest Rate Payment Date | ' | ' | 'AprilB 1 | ' | ' |
TIF bond debt service funding commitment | Semi Annual Payment, Second Payment | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt Instrument Interest Rate Payment Date | ' | ' | 'OctoberB 1 | ' | ' |
TIF bond debt service funding commitment | Term Bond Due December 1st 2017 | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt, interest rate | 6.15% | ' | 6.15% | ' | ' |
Long-term debt | 9,800,000 | ' | 9,800,000 | ' | ' |
Debt, maturity date | ' | ' | 1-Dec-17 | ' | ' |
TIF bond debt service funding commitment | Term Bond Due December 1st 2027 | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt, interest rate | 6.75% | ' | 6.75% | ' | ' |
Long-term debt | 49,700,000 | ' | 49,700,000 | ' | ' |
Debt, maturity date | ' | ' | 1-Dec-27 | ' | ' |
2012 Credit Facility | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt Instrument, Covenant, Leverage Ratio, Maximum | 3.5 | ' | 3.5 | ' | ' |
Debt Instrument, Covenant, Interest Coverage Ratio, Maximum | 2.5 | ' | 2.5 | ' | ' |
Credit Facility current borrowing capacity | 300,000,000 | ' | 300,000,000 | ' | ' |
Credit Facility potential borrowing capacity | 500,000,000 | ' | 500,000,000 | ' | ' |
Debt instrument basis points | ' | ' | 0.50% | ' | ' |
Credit Facility amount outstanding | 0 | ' | 0 | ' | ' |
2012 Credit Facility | Minimum | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | ' | ' | 0.13% | ' | ' |
2012 Credit Facility | Maximum | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | ' | ' | 0.23% | ' | ' |
2012 Credit Facility | Standby Letters of Credit [Member] | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Credit Facility current borrowing capacity | 25,000,000 | ' | 25,000,000 | ' | ' |
2012 Credit Facility | Swing Line Loan [Member] | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Credit Facility current borrowing capacity | 10,000,000 | ' | 10,000,000 | ' | ' |
Four Quarters Ending after any Permitted Acquisition [Member] | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt Instrument, Covenant, Leverage Ratio, Maximum | 4 | ' | 4 | ' | ' |
Accumulated Other Comprehensive Loss | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Stockholders' Equity Attributable to Parent | ($4,310,000) | ' | ($4,310,000) | ' | ($4,638,000) |
London Interbank Offered Rate (LIBOR) [Member] | 2012 Credit Facility | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt instrument basis points | ' | ' | 1.00% | ' | ' |
London Interbank Offered Rate (LIBOR) [Member] | 2012 Credit Facility | Minimum | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt instrument basis points | ' | ' | 1.00% | ' | ' |
London Interbank Offered Rate (LIBOR) [Member] | 2012 Credit Facility | Maximum | ' | ' | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' | ' | ' |
Debt instrument basis points | ' | ' | 1.63% | ' | ' |