COMMITMENTS AND CONTINGENCIES: (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2016	Aug. 31, 2015
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Fiscal year 2016, remaining three months	$ 21,678		$ 21,678
Fiscal year 2017	81,173		81,173
Fiscal year 2018	71,398		71,398
Fiscal year 2019	60,071		60,071
Fiscal year 2020	48,121		48,121
Thereafter	85,501		85,501
Total minimum lease payments	367,942		367,942
Rent expense	26,395	$ 24,198	76,998	$ 69,444
HiChina Web Solutions [Member]
Guarantor Obligations [Line Items]
Guarantor obligations, maximum	35,035		35,035
HiChina Web Solutions [Member]
Loss Contingencies [Line Items]
Discontinued operations, contingent indemnification liability	$ 4,122		$ 4,122

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in 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 required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due 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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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second 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 required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due 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 required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the remainder of the 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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