Derivative Instruments (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	May 31, 2020	May 31, 2019	May 31, 2020	May 31, 2019	Nov. 30, 2019	Jul. 09, 2019
Interest Rate Swap
Derivative [Line Items]
Notional amount						$ 150,000,000.0
Fixed interest rate						1.855%
Forward Contracts
Derivative [Line Items]
Minimum maturity period, foreign currency derivative			30 days
Maximum maturity period, foreign currency derivative			2 years
Loss on foreign currency forward contracts	$ 1,800,000	$ 2,000,000.0	$ 2,400,000	$ 1,300,000
Other Noncurrent Liabilities
Derivative [Line Items]
Derivative liabilities	7,700,000		7,700,000		$ 2,100,000
Other Noncurrent Liabilities | Forward Contracts
Derivative [Line Items]
Derivative liabilities	$ 1,800,000		$ 1,800,000		100,000
Other Current Assets | Forward Contracts
Derivative [Line Items]
Derivative asset					$ 500,000
London Interbank Offered Rate (LIBOR) | Interest Rate Swap
Derivative [Line Items]
Basis spread on variable rate						0.00%