Segment Information - Summary of Revenue and Property and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2017
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenue	$ 23,757,293	$ 19,767,945	$ 16,771,128
Property and equipment, net	569,899	571,326
Geographic Concentration Risk | United States | Sales
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenue	15,760,749	14,169,619	12,290,001
Geographic Concentration Risk | United States | Property and Equipment
Revenues From External Customers And Long Lived Assets [Line Items]
Property and equipment, net	287,679	287,498
Geographic Concentration Risk | Philippines | Property and Equipment
Revenues From External Customers And Long Lived Assets [Line Items]
Property and equipment, net	63,421	75,770
Geographic Concentration Risk | Other | Sales
Revenues From External Customers And Long Lived Assets [Line Items]
Total revenue	7,996,544	5,598,326	$ 4,481,127
Geographic Concentration Risk | Other | Property and Equipment
Revenues From External Customers And Long Lived Assets [Line Items]
Property and equipment, net	$ 218,799	$ 208,058