Long-Term Debt - Additional Information (Detail) (USD $) | 3 Months Ended | |
Feb. 28, 2014 | Feb. 28, 2013 | Nov. 30, 2013 |
Debt Disclosure [Line Items] | ' | ' | ' |
Long-term debt | $274,328,000 | ' | $274,487,000 |
Stockholders' Equity Attributable to Parent | 1,307,643,000 | ' | 1,287,155,000 |
Interest expense | 3,133,000 | 3,962,000 | ' |
Financing costs deferred | 4,200,000 | ' | 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% |
Frequency of periodic payment | 'semi-annual | ' | ' |
Debt Instrument, Covenant, Leverage Ratio, Maximum | 3.5 | ' | ' |
Debt Instrument, Covenant, Interest Coverage Ratio, Maximum | 2 | ' | ' |
Debt Instrument, Covenant Consolidated Net Worth, Percentage, Maximum | 15.00% | ' | ' |
Long-term debt | 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% |
Frequency of periodic payment | 'semi-annual | ' | ' |
Debt Instrument, Covenant, Leverage Ratio, Maximum | 3.5 | ' | ' |
Debt Instrument, Covenant Consolidated Net Worth, Percentage, Maximum | 15.00% | ' | ' |
Long-term debt | 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% |
Long-term debt | 583,000 | ' | 662,000 |
Debt, monthly payment | 29,000 | ' | ' |
6.25 percent Term Loan | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' |
Debt, interest rate | 6.25% | ' | 6.25% |
Long-term debt | 49,852,000 | ' | 49,948,000 |
Debt, monthly payment | 292,000 | ' | ' |
Debt term | 25 | ' | ' |
TIF bond debt service funding commitment | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' |
Long-term debt | 58,893,000 | ' | 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% | ' | ' |
Long-term debt | 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% | ' | ' |
Long-term debt | 49,700,000 | ' | ' |
Debt, maturity date | 1-Dec-27 | ' | ' |
2012 Credit Facility | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' |
Debt Instrument, Covenant, Leverage Ratio, Maximum | 3.5 | ' | ' |
Debt Instrument, Covenant, Interest Coverage Ratio, Maximum | 2.5 | ' | ' |
Credit Facility current borrowing capacity | 300,000,000 | ' | ' |
Credit Facility potential borrowing capacity | 500,000,000 | ' | ' |
Debt instrument basis points | 0.50% | ' | ' |
Credit Facility amount outstanding | 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 | ' | ' |
2012 Credit Facility | Swing Line Loan [Member] | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' |
Credit Facility current borrowing capacity | 10,000,000 | ' | ' |
Accumulated Other Comprehensive Loss | ' | ' | ' |
Debt Disclosure [Line Items] | ' | ' | ' |
Stockholders' Equity Attributable to Parent | ($4,474,000) | ' | ($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% | ' | ' |