Leases (Lease Assets and Liabilities) (Details) $ in Thousands	Nov. 30, 2019 USD ($)
Assets
Operating lease assets	$ 405,895
Finance lease assets	152,846
Total lease assets	558,741
Current
Operating lease liabilities	98,640
Finance lease liabilities	6,635
Non-current
Operating lease liabilities	337,981
Finance lease liabilities	154,801
Total lease liabilities	598,057
Operating lease assets, accumulated amortization	24,600
Finance lease assets, accumulated amortization	$ 8,100