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Leases - Lease Costs (Details)
$ in Thousands
 12 Months Ended
Nov. 30, 2020
USD ($)
Leases [Abstract]  
Lease costs under long-term operating leases $ 7,605
Lease costs under short-term operating leases 426
Variable lease cost under short-term and long-term operating leases 325
Operating lease right-of-use asset impairment 1,189
Total operating lease cost 9,545
Cash paid for leases 8,101
Right-of-use assets recognized for new leases and amendments (non-cash) $ 8,532
Weighted average remaining lease term in years 5 years 7 days
Weighted average discount rate 2.30%