Other Assets (Details) - USD ($) $ in Thousands	Nov. 30, 2017	Nov. 30, 2016	Jan. 29, 2013
Other Assets [Line Items]
Cash surrender value of insurance contracts	$ 75,236	$ 70,829
Debt Issuance Costs, Line of Credit Arrangements, Net	2,381	1,182
Property and equipment, net	19,521	14,240
Prepaid expenses	5,360	4,894
Total	$ 102,498	$ 91,145
Convertible senior notes due February 1, 2019 at 1.375%
Other Assets [Line Items]
Senior notes, rate	1.375%		1.375%

Other Assets [Line Items]

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- Definition

Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt issuance costs related to line of credit arrangements. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of assets classified as other.

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Carrying amount as of the balance sheet date of expenditures made in advance of when the economic benefit of the cost will be realized, and which will be expensed in future periods with the passage of time or when a triggering event occurs.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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