Financial Instruments and Fair Value Measurements (Details) - USD ($) $ in Millions		9 Months Ended
		Aug. 31, 2019	Aug. 31, 2018	Nov. 30, 2018
Fair Value of Financial Instruments [Line Items]
Derivative, Description of Terms		P30D
Foreign Currency Transaction Gain (Loss), before Tax		$ 0.1	$ 0.2
Derivative Liability, Notional Amount		17.3		$ 0.0
Foreign Currency Contracts, Liability, Fair Value Disclosure		0.1
Business Combination, Contingent Consideration, Liability	[1]	0.0		0.6
Financial Liabilities Fair Value Disclosure		$ 0.1		0.6
Derivative Asset, Notional Amount				16.5
Foreign Currency Contract, Asset, Fair Value Disclosure				0.1
Assets, Fair Value Disclosure				0.1
Sales [Member]
Fair Value of Financial Instruments [Line Items]
Concentration Risk, Percentage		10.00%
Term Loan B [Member]
Fair Value of Financial Instruments [Line Items]
Long-term Debt, Fair Value		$ 299.1
$350 million Term Loan B, due 2023 (interest at 5.48% and 5.55%, respectively)		299.5		302.1
Contingent Consideration [Member]
Fair Value of Financial Instruments [Line Items]
Derivative Liability, Notional Amount	[1]	0.0		0.0
Foreign Exchange Contract [Member]
Fair Value of Financial Instruments [Line Items]
Derivative Liability, Notional Amount		$ 17.3
Derivative Asset, Notional Amount				16.5
Accounts Receivable [Member]
Fair Value of Financial Instruments [Line Items]
Concentration Risk, Percentage		10.00%
Fair Value, Inputs, Level 1 [Member]
Fair Value of Financial Instruments [Line Items]
Foreign Currency Contracts, Liability, Fair Value Disclosure		$ 0.0
Business Combination, Contingent Consideration, Liability	[1]	0.0		0.0
Financial Liabilities Fair Value Disclosure		0.0		0.0
Foreign Currency Contract, Asset, Fair Value Disclosure				0.0
Assets, Fair Value Disclosure				0.0
Fair Value, Inputs, Level 2 [Member]
Fair Value of Financial Instruments [Line Items]
Foreign Currency Contracts, Liability, Fair Value Disclosure		0.1
Business Combination, Contingent Consideration, Liability	[1]	0.0		0.0
Financial Liabilities Fair Value Disclosure		0.1		0.0
Foreign Currency Contract, Asset, Fair Value Disclosure				0.1
Assets, Fair Value Disclosure				0.1
Fair Value, Inputs, Level 3 [Member]
Fair Value of Financial Instruments [Line Items]
Foreign Currency Contracts, Liability, Fair Value Disclosure		0.0
Business Combination, Contingent Consideration, Liability	[1]	0.0		0.6
Financial Liabilities Fair Value Disclosure		0.0		0.6
Foreign Currency Contract, Asset, Fair Value Disclosure				0.0
Assets, Fair Value Disclosure				$ 0.0
Fair Value, Inputs, Level 3 [Member] | Contingent Consideration [Member]
Fair Value of Financial Instruments [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3		$ (0.6)

[1] Contingent consideration obligations arise from business or product line acquisitions. The fair values are based on a probability weighted discounted cash flow analysis reflecting an estimated achievement of specified performance measures of the acquired product lines. Contingent consideration is classified in the consolidated balance sheets as other current liabilities or other non-current liabilities based on contractual payment dates.