BORROWINGS: Future Minimum Payments and Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Long-term Debt, Fiscal Year Maturity [Abstract]
2016	$ 92,093
2017	35,836
2018	100,235
2019	63,255
2020	438,287
Thereafter	1,185
Total future principal payments	730,891
Interest Expense, Debt [Abstract]
Interest Expense	27,935	$ 28,022	$ 20,436
Non-cash interest expense	$ 0	$ 0	$ 2,314
Variable interest rates, minimum	0.57%	0.50%	0.63%
Variable interest rates, maximum	4.50%	4.25%	4.08%
Convertible Debt [Member]
Interest Expense, Debt [Abstract]
Non-cash interest expense			$ 2,314

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Section 45
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When presenting a range of interest rates, the highest effective rate for funds borrowed under the debt agreement as of the balance sheet date.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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