Income Taxes - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2018	Nov. 30, 2017	Nov. 30, 2016
Income Taxes [Line Items]
Tax at federal statutory rate	22.20%
Provisional Tax Benefit from Tax Legislation	$ 9.9
Remeasurement of Deferred Taxes from Legislation	4.1
Previously recognized valuation allowance reversal from US tax legislation	25.9
Reversal of VA against AMT from Legislation	0.9
VA Reversal for Intangibles from Legislation	4.9
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax	0.3
Net Operating Loss Carryforward Created in the Year	1.8
utilized federal net operating loss carryforward		$ 7.8	$ 15.6
Foreign tax credit carryforwards with indefinite carryforward periods	30.5
Income Taxes Paid	6.8	$ 4.5	4.2
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	0.2
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	0.4
Effective Income Tax Rate Reconciliation, Tax Contingency, Amount			$ 0.1
Undistributed Earnings of Foreign Subsidiaries	60.6
Domestic Tax Authority [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards	93.1
Deferred Tax Assets, Capital Loss Carryforwards	8.1
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards	78.9
Foreign Tax Authority [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards	42.3
Tax Credit Carryforward, Amount	$ 0.1