Contingencies and Commitments	12 Months Ended
Contingencies and Commitments	Nov. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Contingencies and Commitments	Contingencies and Commitments Legal Proceedings China Customs Matter. In December 2019, the China Customs office in Shanghai notified the Company that it intended to issue a finding that the Company had previously used an incorrect customs code in connection with exports from China in respect of a small product line. As a result, the local Shanghai taxing authority may seek to recoup certain value added tax (“VAT”) refunds previously received by the Company in respect of the exported products. The Company intends to vigorously defend its position if a proceeding is initiated. As of November 30, 2019, the Company does not have sufficient information to reasonably estimate the amount of possible recoupment of historical VAT refunds and related amounts which may be payable, if any. Accordingly, no provision related to this matter has been recorded in the Company’s consolidated financial statements as of November 30, 2019. Other Matters. From time to time, the Company is subject to various claims, proceedings, and lawsuits related to products, services, contracts, employment, environmental, safety, intellectual property, and other matters. The ultimate resolution of such claims, proceedings, and lawsuits is inherently unpredictable and, as a result, the Company’s estimates of liability, if any, are subject to change. Actual results may materially differ from the Company’s estimates and an unfavorable resolution of any matter could have a material adverse effect on the financial condition, results of operations and/or cash flows of the Company. However, subject to the above and taking into account such amounts, if any, as are accrued from time to time on the Company’s balance sheet, the Company does not believe, based on the information currently available to it, that the ultimate resolution of these matters will have a material effect on the consolidated financial condition, results of operations, or cash flows of the Company. Leases The Company leases certain facilities, machinery and equipment, and office buildings under long-term, non-cancelable operating leases. The leases generally provide for renewal options ranging from 5 to 20 years and require the Company to pay for utilities, insurance, taxes, and maintenance. Lease expense on operating leases was $5.7 million in 2019, $5.7 million in 2018, and $6.2 million in 2017. Future minimum commitments at November 30, 2019 for non-cancelable operating leases were $16.0 million with annual amounts of $4.2 million in 2020, $2.8 million in 2021, $2.3 million in 2022, $1.5 million in 2023, $0.8 million in 2024, and $4.4 million for leases thereafter. Environmental Matters The Company’s policy is to conduct its businesses with due regard for the preservation and protection of the environment. The Company devotes significant resources and management attention to comply with environmental laws and regulations. The Company’s Consolidated Balance Sheets as of November 30, 2019 and 2018 reflects reserves for environmental remediation of $1.4 million and $1.5 million, respectively. The Company’s estimates are subject to change and actual results may materially differ from the Company’s estimates. Management believes, on the basis of presently available information, that resolution of known environmental matters will not materially affect liquidity, capital resources, or the financial condition of the Company. Collective Bargaining Agreements At November 30, 2019, the Company employed approximately 1,850 employees at offices, plants, and other facilities located principally throughout the United States, France, China, Portugal and Thailand. Approximately 12% of the Company’s U.S. employees are covered by collective bargaining agreements of which approximately 20 employees are covered by agreements that expire within the next 12 months. In addition, certain of our foreign employees are also covered by collective bargaining agreements.